{"id":7225,"date":"2026-03-02T10:31:22","date_gmt":"2026-03-02T10:31:22","guid":{"rendered":"https:\/\/www.chennaineet.com\/blog\/?p=7225"},"modified":"2026-03-02T11:00:20","modified_gmt":"2026-03-02T11:00:20","slug":"thermodynamics-physics-class-11-ncert","status":"publish","type":"post","link":"https:\/\/www.chennaineet.com\/blog\/thermodynamics-physics-class-11-ncert\/","title":{"rendered":"NCERT Book for Class 11 Physics Part 2 \u2013 (Chapter 12 &#8211; Thermodynamics)"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Chapter 12 &#8211; Thermodynamics<\/h2>\n\n\n\n<p>Chapter 12 \u2013 Thermodynamics explains the relationship between <strong>heat, work, and energy<\/strong> in physical systems. It introduces important concepts such as <strong>thermal equilibrium, system and surroundings, internal energy<\/strong>, and different thermodynamic processes like <strong>isothermal, adiabatic, isobaric, and isochoric processes<\/strong>.<\/p>\n\n\n\n<p>The chapter focuses on the <strong>First Law of Thermodynamics<\/strong>, heat engines, efficiency, and the concept of entropy through the <strong>Second Law of Thermodynamics<\/strong>. These principles help explain energy transformations in natural and mechanical systems and are highly important for CBSE board exams as well as competitive exams like <a href=\"https:\/\/www.wikitechy.com\/what-are-the-most-highly-rated-neet-video-lecture-providers-in-2026\/\" target=\"_blank\" rel=\"noopener\">NEET<\/a> and JEE.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Thermodynamics Physics Class 11 NCERT<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"793\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-1-793x1024.jpg\" alt=\"\" class=\"wp-image-7226\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-1-793x1024.jpg 793w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-1-232x300.jpg 232w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-1-768x991.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-1-1190x1536.jpg 1190w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-1-440x568.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-1-680x878.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-1.jpg 1368w\" sizes=\"(max-width: 793px) 100vw, 793px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"793\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-2-793x1024.jpg\" alt=\"\" class=\"wp-image-7227\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-2-793x1024.jpg 793w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-2-232x300.jpg 232w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-2-768x991.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-2-1190x1536.jpg 1190w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-2-440x568.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-2-680x878.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-2.jpg 1368w\" sizes=\"(max-width: 793px) 100vw, 793px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"793\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-3-793x1024.jpg\" alt=\"\" class=\"wp-image-7228\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-3-793x1024.jpg 793w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-3-232x300.jpg 232w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-3-768x991.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-3-1190x1536.jpg 1190w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-3-440x568.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-3-680x878.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-3.jpg 1368w\" sizes=\"(max-width: 793px) 100vw, 793px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"793\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-4-793x1024.jpg\" alt=\"\" class=\"wp-image-7229\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-4-793x1024.jpg 793w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-4-232x300.jpg 232w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-4-768x991.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-4-1190x1536.jpg 1190w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-4-440x568.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-4-680x878.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-4.jpg 1368w\" sizes=\"(max-width: 793px) 100vw, 793px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"793\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-5-793x1024.jpg\" alt=\"\" class=\"wp-image-7230\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-5-793x1024.jpg 793w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-5-232x300.jpg 232w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-5-768x991.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-5-1190x1536.jpg 1190w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-5-440x568.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-5-680x878.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-5.jpg 1368w\" sizes=\"(max-width: 793px) 100vw, 793px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"793\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-6-793x1024.jpg\" alt=\"\" class=\"wp-image-7231\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-6-793x1024.jpg 793w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-6-232x300.jpg 232w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-6-768x991.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-6-1190x1536.jpg 1190w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-6-440x568.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-6-680x878.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-6.jpg 1368w\" sizes=\"(max-width: 793px) 100vw, 793px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"793\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-7-793x1024.jpg\" alt=\"\" class=\"wp-image-7232\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-7-793x1024.jpg 793w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-7-232x300.jpg 232w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-7-768x991.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-7-1190x1536.jpg 1190w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-7-440x568.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-7-680x878.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-7.jpg 1368w\" sizes=\"(max-width: 793px) 100vw, 793px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"793\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-8-793x1024.jpg\" alt=\"\" class=\"wp-image-7233\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-8-793x1024.jpg 793w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-8-232x300.jpg 232w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-8-768x991.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-8-1190x1536.jpg 1190w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-8-440x568.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-8-680x878.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-8.jpg 1368w\" sizes=\"(max-width: 793px) 100vw, 793px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"793\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-9-793x1024.jpg\" alt=\"\" class=\"wp-image-7234\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-9-793x1024.jpg 793w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-9-232x300.jpg 232w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-9-768x991.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-9-1190x1536.jpg 1190w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-9-440x568.jpg 440w, 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https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-10-440x568.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-10-680x878.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-10.jpg 1368w\" sizes=\"(max-width: 793px) 100vw, 793px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"793\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-11-793x1024.jpg\" alt=\"\" class=\"wp-image-7236\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-11-793x1024.jpg 793w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-11-232x300.jpg 232w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-11-768x991.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-11-1190x1536.jpg 1190w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-11-440x568.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-11-680x878.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-11.jpg 1368w\" sizes=\"(max-width: 793px) 100vw, 793px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"793\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-12-793x1024.jpg\" alt=\"\" class=\"wp-image-7237\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-12-793x1024.jpg 793w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-12-232x300.jpg 232w, 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https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-13-232x300.jpg 232w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-13-768x991.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-13-1190x1536.jpg 1190w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-13-440x568.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-13-680x878.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-13.jpg 1368w\" sizes=\"(max-width: 793px) 100vw, 793px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"793\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-14-793x1024.jpg\" alt=\"\" class=\"wp-image-7239\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-14-793x1024.jpg 793w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-14-232x300.jpg 232w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-14-768x991.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-14-1190x1536.jpg 1190w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-14-440x568.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-14-680x878.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-14.jpg 1368w\" sizes=\"(max-width: 793px) 100vw, 793px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"793\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-15-793x1024.jpg\" alt=\"\" class=\"wp-image-7240\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-15-793x1024.jpg 793w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-15-232x300.jpg 232w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-15-768x991.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-15-1190x1536.jpg 1190w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-15-440x568.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-15-680x878.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-15.jpg 1368w\" sizes=\"(max-width: 793px) 100vw, 793px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"793\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-16-793x1024.jpg\" alt=\"\" class=\"wp-image-7241\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-16-793x1024.jpg 793w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-16-232x300.jpg 232w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-16-768x991.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-16-1190x1536.jpg 1190w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-16-440x568.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-16-680x878.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-16.jpg 1368w\" sizes=\"(max-width: 793px) 100vw, 793px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"793\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-17-793x1024.jpg\" alt=\"\" class=\"wp-image-7242\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-17-793x1024.jpg 793w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-17-232x300.jpg 232w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-17-768x991.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-17-1190x1536.jpg 1190w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-17-440x568.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-17-680x878.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-17.jpg 1368w\" sizes=\"(max-width: 793px) 100vw, 793px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"793\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-18-793x1024.jpg\" alt=\"\" class=\"wp-image-7243\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-18-793x1024.jpg 793w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-18-232x300.jpg 232w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-18-768x991.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-18-1190x1536.jpg 1190w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-18-440x568.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-18-680x878.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-18.jpg 1368w\" sizes=\"(max-width: 793px) 100vw, 793px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"793\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-19-793x1024.jpg\" alt=\"\" class=\"wp-image-7244\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-19-793x1024.jpg 793w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-19-232x300.jpg 232w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-19-768x991.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-19-1190x1536.jpg 1190w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-19-440x568.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-19-680x878.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-19.jpg 1368w\" sizes=\"(max-width: 793px) 100vw, 793px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"793\" height=\"1024\" src=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-20-793x1024.jpg\" alt=\"\" class=\"wp-image-7245\" srcset=\"https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-20-793x1024.jpg 793w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-20-232x300.jpg 232w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-20-768x991.jpg 768w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-20-1190x1536.jpg 1190w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-20-440x568.jpg 440w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-20-680x878.jpg 680w, https:\/\/www.chennaineet.com\/blog\/wp-content\/uploads\/2026\/03\/Thermodynamics-20.jpg 1368w\" sizes=\"(max-width: 793px) 100vw, 793px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><a href=\"https:\/\/www.chennaineet.com\/blog\/class-11-physics-kinetic-theory-ncert\/\">Chapter 13 &#8211; Kinetic Theory<\/a><\/strong><\/li>\n<\/ul>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Chapter 12 &#8211; Thermodynamics Chapter 12 \u2013 Thermodynamics explains the relationship between heat, work, and energy in physical systems. It introduces important concepts such as thermal equilibrium, system and surroundings, internal energy, and different thermodynamic processes like isothermal, adiabatic, isobaric, and isochoric processes. The chapter focuses on the First Law of Thermodynamics, heat engines, efficiency, [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":7247,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[134,137],"tags":[745,742,719,746,747,748,743,744],"class_list":["post-7225","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ncert-book","category-neet-physics","tag-physics-ncert-class-11-pdf-part-2-chapter-1","tag-physics-ncert-class-11-pdf-part-2-index","tag-physics-ncert-class-11-pdf-part-2-mechanical-properties-of-solids","tag-physics-ncert-class-11-pdf-part-3","tag-physics-ncert-class-12-pdf-part-2","tag-thermodynamics-class-11-physics","tag-thermodynamics-physics-class-11-ncert-pdf","tag-thermodynamics-physics-class-11-ncert-solutions-pdf"],"_links":{"self":[{"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/posts\/7225","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/comments?post=7225"}],"version-history":[{"count":2,"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/posts\/7225\/revisions"}],"predecessor-version":[{"id":7279,"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/posts\/7225\/revisions\/7279"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/media\/7247"}],"wp:attachment":[{"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/media?parent=7225"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/categories?post=7225"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.chennaineet.com\/blog\/wp-json\/wp\/v2\/tags?post=7225"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}