{"id":4337,"date":"2026-04-06T10:44:55","date_gmt":"2026-04-06T10:44:55","guid":{"rendered":"https:\/\/ksquareinstitute.in\/blog\/?p=4337"},"modified":"2026-04-08T11:40:15","modified_gmt":"2026-04-08T11:40:15","slug":"top-5-thermodynamics-questions","status":"publish","type":"post","link":"https:\/\/ksquareinstitute.in\/blog\/top-5-thermodynamics-questions\/","title":{"rendered":"Top 5 Thermodynamics Questions for NEET (Repeated Problems with Solutions)"},"content":{"rendered":"\n

Top 5 Thermodynamics Questions for NEET is a highly important topic for aspirants aiming to score well in Physical Chemistry. Thermodynamics involves a mix of conceptual understanding and numerical problem-solving, making it one of the most reliable scoring chapters in NEET. Questions from this chapter are frequently repeated with slight variations, which makes practicing the Top 5 Thermodynamics Questions for NEET extremely beneficial for exam preparation.<\/p>\n\n\n\n

\"Top<\/figure>\n\n\n\n

Why Focus on Top 5 Thermodynamics Questions for NEET?<\/h2>\n\n\n\n

The Top 5 Thermodynamics Questions for NEET are based on core concepts that are consistently tested in the exam. Topics such as the first law of thermodynamics, enthalpy changes, entropy, Gibbs free energy, and spontaneity form the backbone of this chapter. NEET often asks direct formula-based or concept-based questions, and students who have practiced similar problems can solve them quickly and accurately. This makes thermodynamics a high-return chapter in terms of effort versus marks.<\/p>\n\n\n\n

Top 5 Thermodynamics Questions for NEET with Solutions<\/h2>\n\n\n\n

Question 1: First Law of Thermodynamics<\/h3>\n\n\n\n

A system absorbs 200 J of heat and does 50 J of work. What is the change in internal energy?<\/p>\n\n\n\n

Solution:<\/strong>
Using the first law of thermodynamics:
\u0394U = Q \u2212 W<\/p>\n\n\n\n

\u0394U = 200 \u2212 50 = 150 J<\/p>\n\n\n\n

Explanation:<\/strong>
The internal energy increases when heat is absorbed and work is done by the system. This is a direct formula-based question and is commonly included in the Top 5 Thermodynamics Questions for NEET.<\/p>\n\n\n\n

Question 2: Enthalpy Change<\/h3>\n\n\n\n

What is the enthalpy change for an exothermic reaction?<\/p>\n\n\n\n

Solution:<\/strong>
\u0394H is negative.<\/p>\n\n\n\n

Explanation:<\/strong>
In an exothermic reaction, heat is released to the surroundings, leading to a decrease in enthalpy. Such conceptual questions are frequently asked in the Top 5 Thermodynamics Questions for NEET.<\/p>\n\n\n\n

Question 3: Entropy Change<\/h3>\n\n\n\n

In which process does entropy increase?
Melting of ice, Freezing of water<\/p>\n\n\n\n

Solution:<\/strong>
Melting of ice.<\/p>\n\n\n\n

Explanation:<\/strong>
Entropy is a measure of randomness. When ice melts into water, the molecules gain freedom of movement, increasing disorder and hence entropy. This type of question is commonly seen in the Top 5 Thermodynamics Questions for NEET.<\/p>\n\n\n\n

Question 4: Gibbs Free Energy<\/h3>\n\n\n\n

What is the condition for spontaneity of a reaction?<\/p>\n\n\n\n

Solution:<\/strong>
\u0394G < 0<\/p>\n\n\n\n

Explanation:<\/strong>
A reaction is spontaneous when the Gibbs free energy change is negative. This indicates that the process can occur without external energy input. Questions based on spontaneity are very common in the Top 5 Thermodynamics Questions for NEET.<\/p>\n\n\n\n

Question 5: Relationship Between \u0394G, \u0394H, and T<\/h3>\n\n\n\n

What happens if \u0394H < 0 and \u0394S > 0?<\/p>\n\n\n\n

Solution:<\/strong>
The reaction is spontaneous at all temperatures.<\/p>\n\n\n\n

Explanation:<\/strong>
Using the equation \u0394G = \u0394H \u2212 T\u0394S, when \u0394H is negative and \u0394S is positive, \u0394G will always be negative regardless of temperature. This makes the reaction spontaneous under all conditions. Such analytical questions are frequently included in the Top 5 Thermodynamics Questions for NEET.<\/p>\n\n\n\n

Key Concepts Covered in Top 5 Thermodynamics Questions for NEET<\/h2>\n\n\n\n

The Top 5 Thermodynamics Questions for NEET focus on essential concepts such as the first law of thermodynamics, internal energy, enthalpy, entropy, and Gibbs free energy. These concepts are interconnected and often tested together in a single question. Understanding these relationships helps in solving both direct numerical problems and conceptual MCQs efficiently.<\/p>\n\n\n\n

Preparation Strategy for Thermodynamics (NEET)<\/h2>\n\n\n\n

To master the Top 5 Thermodynamics Questions for NEET, focus on understanding formulas and their applications rather than memorizing them blindly. Start with NCERT and ensure clarity in fundamental concepts like energy changes and spontaneity. Practice numerical problems regularly to improve speed and accuracy. Revising formulas and solving previous year questions multiple times will help you recognize patterns and avoid common mistakes.<\/p>\n\n\n\n

Conclusion<\/h2>\n\n\n\n

The Top 5 Thermodynamics Questions for NEET highlight the most important and frequently repeated problems from this chapter. Thermodynamics is a scoring topic if approached with the right strategy and consistent practice. By mastering these questions and understanding the underlying concepts, you can significantly improve your performance in NEET Chemistry.<\/p>\n\n\n\n

FAQs on Top 5 Thermodynamics Questions for NEET<\/h2>\n\n\n\n

1. Is thermodynamics important for NEET?<\/h3>\n\n\n\n

Yes, thermodynamics is a high-weightage and scoring chapter in NEET Chemistry.<\/p>\n\n\n\n

2. How many questions come from thermodynamics in NEET?<\/h3>\n\n\n\n

Typically, 2\u20133 questions are asked from thermodynamics.<\/p>\n\n\n\n

3. What are the most important topics in thermodynamics?<\/h3>\n\n\n\n

First law, enthalpy, entropy, Gibbs free energy, and spontaneity.<\/p>\n\n\n\n

4. Is NCERT enough for thermodynamics?<\/h3>\n\n\n\n

NCERT is essential, but practicing numerical problems and PYQs is crucial.<\/p>\n","protected":false},"excerpt":{"rendered":"

Top 5 Thermodynamics Questions for NEET is a highly important topic for aspirants aiming to score well in Physical Chemistry. Thermodynamics involves a mix of conceptual understanding and numerical problem-solving, making it one of the most reliable scoring chapters in NEET. Questions from this chapter are frequently repeated with slight variations, which makes practicing the […]<\/p>\n","protected":false},"author":1,"featured_media":4328,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[127,69],"tags":[660,663,661,629,662,657,659,658],"class_list":["post-4337","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-free-study-material","category-chemistry","tag-enthalpy-entropy-neet-questions","tag-first-law-of-thermodynamics-neet","tag-gibbs-free-energy-neet","tag-neet-chemistry-pyqs","tag-spontaneity-neet-questions","tag-thermodynamics-neet-questions","tag-thermodynamics-numerical-neet","tag-top-5-thermodynamics-questions-for-neet"],"blocksy_meta":{"page_structure_type":"type-1","styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":6}},"_links":{"self":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts\/4337","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/comments?post=4337"}],"version-history":[{"count":2,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts\/4337\/revisions"}],"predecessor-version":[{"id":4479,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts\/4337\/revisions\/4479"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/media\/4328"}],"wp:attachment":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/media?parent=4337"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/categories?post=4337"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/tags?post=4337"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}