Thermodynamics for NEET: PYQ trend, NCERT lines NEET repeats, free lecture

Thermodynamics in NEET: the numbers

43NEET / AIPMT questions in our PYQ bank (1988–2026)

28exam years with a question from this chapter

5NCERT lines NEET asked more than once

Topics NEET asks most

Topic	Questions
Thermodynamic processes	26
Zeroth and first law of thermodynamics	16
Second law of thermodynamics	1

NCERT lines NEET asked again and again

Read these lines from your NCERT book twice: NEET has built questions on each of them more than once.

Heat given to a system goes partly into internal energy and partly into work done by it: ΔQ = ΔU + ΔW. In an adiabatic change ΔQ = 0, so ΔU = -ΔW .

AIPMT 1988AIPMT 1993AIPMT 1998AIPMT 2009

With no heat exchange, an ideal gas obeys pV^γ = constant , which also means TV^(γ − 1) = constant and p^(1 − γ)T^γ = constant . Use kelvin for T.

AIPMT 1996AIPMT 1999AIPMT 2010AIPMT 2011

The adiabatic curve is steeper than the isothermal one on a p-V graph. So adiabatic compression needs more work than isothermal, and a loop's work is the enclosed area .

NEET 2013NEET 2015NEET 2016NEET 2022

Pressure, volume, temperature and U describe the state, so ΔU is the same for every path. Heat and work depend on the path , so they are not state variables.

AIPMT 1993AIPMT 2012NEET 2024

For an ideal gas U depends only on T, so in an isothermal process ΔU = 0 and Q = W . Over a full cycle, ΔU = 0 too, so net heat equals net work .

AIPMT 1993AIPMT 2008AIPMT 2011

Free lecture by Prashant Sir

CURRENT ELECTRICITY L-1 | NEET Physics Crash Course | NCERT Physics Class 12 · 2.3M views on YouTube

Free NCERT notes for Thermodynamics

How heat, work and internal energy are linked: the zeroth, first and second laws, the four standard processes on a p-V graph, and reversible and irreversible processes. NEET asks from this chapter almost every year, mostly p-V graphs and first-law sign problems.

Read the chapter notes: key NCERT points, graphs, every formula with its meaning, tricks, common mistakes and NEET traps.

FAQ

How many questions come from Thermodynamics in NEET?

Our bank of NEET and AIPMT papers (1988–2026) has 43 questions from Thermodynamics, most of them from Thermodynamic processes, Zeroth and first law of thermodynamics, Second law of thermodynamics.

Which NCERT line of Thermodynamics has NEET asked the most?

This line has been asked 4 times in NEET/AIPMT: "Heat given to a system goes partly into internal energy and partly into work done by it: ΔQ = ΔU + ΔW. In an adiabatic change ΔQ = 0, so ΔU = -ΔW."

Where can I study Thermodynamics for NEET for free?

Prashant Sir's full lecture is free on the NEET Physics Kota YouTube channel, and the chapter notes are free on Dhruv.