Kinetic Theory for NEET: PYQ trend, NCERT lines NEET repeats, free lecture

Kinetic Theory in NEET: the numbers

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

27exam years with a question from this chapter

6NCERT lines NEET asked more than once

Topics NEET asks most

Topic	Questions
Ideal gas equation	14
Degrees of freedom and equipartition	14
Kinetic interpretation of pressure and temperature	12
Mean free path	3

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.

Average KE per molecule is 3/2 k_BT, so vᵣₘₛ∝√(T/M) . Temperature measures KE only, and at 0 K translational motion stops.

NEET 2018NEET 2019NEET 2023NEET 2026

Each degree of freedom holds (1/2)k_BT per molecule, giving γ = 1 + 2/f : monatomic 5/3, rigid diatomic 7/5, and diatomic with vibration 9/7.

AIPMT 1992NEET 2017NEET 2019NEET 2024

Rewriting pV = μRT with mass per volume gives p = ρRT/M₀ . At the same p and T, a heavier gas is denser, so ρ∝M₀.

NEET 2015NEET 2016NEET 2020

Between collisions a molecule travels l = 1/(√2 nπd²) , so l falls as the number density or the square of the diameter rises.

NEET 2014NEET 2020NEET 2026

For non-reacting gases in one vessel, partial pressures add, so p = (μ₁ + μ₂ + …)RT/V : just add the moles and use one ideal gas equation.

NEET 2023NEET 2025

Wall hits by random molecules give p = 2/3 (E/V) , where E is the total translational KE. Equivalent form: p ∝mv² per unit volume.

AIPMT 1991NEET 2013

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 Kinetic Theory

Kinetic theory explains pressure, temperature and specific heats from the random motion of molecules. It is a short, formula-rich chapter; NEET usually has about one question from it, often on vᵣₘₛ, degrees of freedom or γ.

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 Kinetic Theory in NEET?

Our bank of NEET and AIPMT papers (1988–2026) has 43 questions from Kinetic Theory, most of them from Ideal gas equation, Degrees of freedom and equipartition, Kinetic interpretation of pressure and temperature.

Which NCERT line of Kinetic Theory has NEET asked the most?

This line has been asked 4 times in NEET/AIPMT: "Average KE per molecule is 3/2 k_BT, so vᵣₘₛ∝√(T/M). Temperature measures KE only, and at 0 K translational motion stops."

Where can I study Kinetic Theory 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.