Thermodynamics
18 NEET Chemistry previous year questions (PYQs) from 8 papers, 2021 to 2026, with answers and worked solutions.
About this chapter
- Difficulty: 5 easy · 10 moderate · 3 hard.
- Most-asked subtopics: Work in Thermodynamic Processes (1), Carnot-type cycle - work and internal energy (1), Free (isothermal) expansion into vacuum (1).
- Updated 17 July 2026.
- NEET · 2022 · NEET (UG) 2022 — 17 Jul 2022 · Q51ModerateHas image
#1Work in Thermodynamic Processes
#2Heat Capacities of Gases
#3Entropy and Spontaneity
#4Free (isothermal) expansion into vacuum
#5Enthalpy sign of endothermic reactions
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#6Relation between ΔH and ΔU
#7Types of thermodynamic processes
#8Entropy change in processes
#9Work in reversible isothermal expansion
#10Gibbs energy and equilibrium constant
#11Enthalpy and internal energy
#12Entropy change in free expansion of ideal gas
- NEET · 2026 · Re-NEET (UG) 2026 — 21 Jun 2026 · Q69HardHas image
#13Carnot-type cycle - work and internal energy
#14Gibbs energy, equilibrium constant and entropy
#15Gibbs Energy and Spontaneity
#16First Law of Thermodynamics
- NEET · 2025 · NEET (UG) 2025 — 04 May 2025 · Q65ModerateHas image
#17Energy Profile of Exothermic Reactions
#18Hess's Law and Heat of Formation
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- Hydrocarbons20
- Organic Chemistry – Some Basic Principles and Techniques19
- Solutions15
- Structure of Atom15
- The d- and f-Block Elements21
- The p-Block Elements27