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Answer first
Thermodynamics PYQs (previous year questions) for JEE Advanced: Thermodynamics (Physics) had 36 questions across the 22 official JEE Advanced papers we tagged (2016–2026), and appeared in 20 of them. Asked in 11 of 11 years. The concepts asked in the most papers: Thermodynamic Processes, Cyclic Process, Adiabatic Process.
Year-wise question count
Asked in 11 of 11 years, with 2 papers each year.
Most-asked concepts
Sorted by the number of papers a concept appeared in.
| Concept | Questions | Papers | Years |
|---|---|---|---|
| Thermodynamic Processes | 10 | 7 | 2026, 2022, 2020, 2019, 2018, 2017 |
| Cyclic Process | 7 | 7 | 2026, 2025, 2024, 2023, 2021, 2019, 2018 |
| Adiabatic Process | 5 | 5 | 2023, 2021, 2020, 2019, 2018 |
| First Law | 3 | 3 | 2023, 2021, 2016 |
| Carnot Engine | 2 | 2 | 2026, 2025 |
| Thermal Radiation | 2 | 2 | 2017, 2016 |
| Calorimetry | 1 | 1 | 2016 |
| Heat Conduction | 1 | 1 | 2026 |
| Ideal Gas Equilibrium | 1 | 1 | 2025 |
| Internal Energy | 1 | 1 | 2022 |
| Radiation | 1 | 1 | 2025 |
| Specific Heat | 1 | 1 | 2024 |
| Stefan's Law | 1 | 1 | 2016 |
How to practise Thermodynamics PYQs
- Start with the concepts at the top of the table. They have come back the most.
- Solve one year’s Thermodynamics questions from the official PDF against the clock, then check the answer listed below.
- Log every miss as a concept gap, a calculation slip or a misread. Each needs a different fix.
- Once a concept is clean in two papers, move to the next. Then sit a full paper from the year pages.
Questions by year
Each line gives the question number and paper, type, concept, our one-line summary and the official answer, with a link to the official PDF.
JEE Advanced2026
- Q.7 (Paper 1) · MSQ · Cyclic Process: Efficiency and heat flows of an isothermal-isochoric-adiabatic cycle (official answer: A, B, C) PDF
- Q.10 (Paper 1) · Numerical · Carnot Engine: Work fraction of five Carnot engines in series (official answer: 0.32–0.34) PDF
- Q.11 (Paper 1) · Numerical · Heat Conduction: Heat flow through a partition between gases with a free piston (official answer: 0.63–0.70) PDF
- Q.9 (Paper 2) · MSQ · Thermodynamic Processes: Work and heat for sudden compression and cooling of a monatomic gas (official answer: A, B, C) PDF
JEE Advanced2025
- Q.10 (Paper 1) · Numerical · Radiation: Power transfer between black body plates after inserting two plates (official answer: 3) PDF
- Q.8 (Paper 2) · MSQ · Carnot Engine: Carnot engine driving a heat pump: work, heat and temperatures (official answer: A, B, C) PDF
- Q.11 (Paper 2) · Numerical · Cyclic Process: Work in an adiabatic-isobaric cycle on a V-T diagram (official answer: 1.6) PDF
- Q.13 (Paper 2) · Numerical · Ideal Gas Equilibrium: Equilibrium of a spring-loaded piston between two gas compartments (official answer: 0.2) PDF
JEE Advanced2024
JEE Advanced2023
- Q.6 (Paper 1) · MCQ · Adiabatic Process: Temperature ratio for adiabatic and isothermal paths to one state (official answer: A) PDF
- Q.11 (Paper 1) · Integer · First Law: Internal energy change of a gas mixture heated at constant pressure (official answer: 121) PDF
- Q.13 (Paper 2) · Integer · Cyclic Process: Ratio of work done in two cyclic processes on P-V diagrams (official answer: 2) PDF
JEE Advanced2022
JEE Advanced2021
- Q.2 (Paper 1) · MCQ · Cyclic Process: Steps of a P-V cycle in which the gas absorbs heat PDF
- Q.15 (Paper 2) · MCQ · Adiabatic Process: Final temperature of compressed gas with a heated partitioned cylinder PDF
- Q.16 (Paper 2) · MCQ · First Law: Heat supplied by heater to move a partition in an insulated cylinder PDF
JEE Advanced2020
- Q.16 (Paper 1) · Numerical · Thermodynamic Processes: Ratio of isothermal to adiabatic work for helium expansion PDF
- Q.6 (Paper 2) · Integer · Thermodynamic Processes: Final position of a heavy diathermic partition in a closed vessel PDF
- Q.13 (Paper 2) · Numerical · Adiabatic Process: Restoring pressure change of an adiabatically compressed bubble PDF
JEE Advanced2019
- Q.9 (Paper 1) · MSQ · Cyclic Process: Work and heat ratios for a cycle shown on a V-T diagram (official answer: A, C) PDF
- Q.5 (Paper 2) · MSQ · Adiabatic Process: Adiabatic compression of a monatomic-diatomic gas mixture (official answer: A, C, D) PDF
- Q.17 (Paper 2) · Matching · Thermodynamic Processes: Matching work, heat and internal energy for a P-V process (official answer: B) PDF
- Q.18 (Paper 2) · Matching · Thermodynamic Processes: Matching work, heat and internal energy for a T-V process (official answer: C) PDF
JEE Advanced2018
- Q.6 (Paper 1) · MSQ · Cyclic Process: Work and heat in a V-T cyclic process of a monatomic gas PDF
- Q.12 (Paper 2) · Numerical · Adiabatic Process: Decrease in internal energy in an adiabatic expansion PDF
- Q.17 (Paper 2) · Matching · Thermodynamic Processes: Match four processes on a diagram with work and heat statements PDF
JEE Advanced2017
- Q.4 (Paper 1) · MSQ · Thermal Radiation: Radiation from a human body using Stefan-Boltzmann and Wien laws (official answer: C) PDF
- Q.16 (Paper 1) · Matching · Thermodynamic Processes: Matching process, work expression and P-V plot for isobaric case (official answer: D) PDF
- Q.17 (Paper 1) · Matching · Thermodynamic Processes: Correct combination of process, work and P-V diagram (official answer: B) PDF
- Q.18 (Paper 1) · Matching · Thermodynamic Processes: Process used as correction for speed of sound in a gas (official answer: D) PDF
JEE Advanced2016
- Q.3 (Paper 1) · MCQ · Calorimetry: Minimum cooler power to run a heat-generating device for 3 hours (official answer: B) PDF
- Q.8 (Paper 1) · MSQ · Thermal Radiation: Behaviour of an ageing tungsten filament at constant voltage (official answer: C, D) PDF
- Q.14 (Paper 1) · Integer · Stefan's Law: Sensor reading of radiated power after raising metal temperature (official answer: 9) PDF
- Q.3 (Paper 2) · MCQ · First Law: Heat supplied in an isobaric then isochoric two-step process (official answer: C) PDF
Thermodynamics in other exams
The same chapter in other official papers we tagged: GATE ME (38 questions), JEE Main (11 questions), NEET (1 question).
Other Physics chapters
- Units and Measurements PYQs
- Kinematics PYQs
- Laws of Motion PYQs
- Work, Energy and Power PYQs
- Rotational Motion PYQs
- Gravitation PYQs
- Properties of Solids and Liquids PYQs
- Kinetic Theory of Gases PYQs
- Oscillations and Waves PYQs
- Electrostatics PYQs
- Current Electricity PYQs
- Magnetic Effects of Current and Magnetism PYQs
- Electromagnetic Induction and AC PYQs
- Electromagnetic Waves PYQs
- Optics PYQs
- Dual Nature of Matter and Radiation PYQs
- Atoms and Nuclei PYQs
- Experimental Skills PYQs
FAQ
How many Thermodynamics questions come in JEE Advanced?
In the official papers we tagged: 4 in 2026, 4 in 2025, 2 in 2024, 3 in 2023, 2 in 2022, 3 in 2021, 3 in 2020, 4 in 2019, 3 in 2018, 4 in 2017 and 4 in 2016 (2 papers each year). That is 36 questions in all, about 9% of Physics.
Which Thermodynamics topics repeat in JEE Advanced?
Asked in the most papers: Thermodynamic Processes, Cyclic Process, Adiabatic Process. The concept table lists every one with its count.
Are these official JEE Advanced questions?
Yes. Every question is from an official JEE Advanced paper hosted on our year pages. The one-line summaries are ours; open the PDF linked beside each question for the full text.