Kinetic Theory – JEE Main Previous Year Questions (2015–2025)

All 7 JEE Main previous-year questions from Kinetic Theory (Physics), 2015–2025, taken from 6 papers. Practise them together in one test with the official marking and answer key, then review every answer.

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Kinetic Theory questions by paper

Paper	Questions
JEE Main 2025 22 Jan Shift 2	1
JEE Main 2019 8 Apr Shift 1	1
JEE Main 2019 9 Jan Shift 1	1
JEE Main 2018 Set B (offline)	1
JEE Main 2017 Set B (offline)	1
JEE Main 2015 Set B (offline)	2

Sample questions

JEE Main 2025 22 Jan Shift 2
op For a diatomic gas if 2 for rigid molecules and 2 for another diatomic molecules but also having vibrational modes Then which one of the following options is correct…
JEE Main 2019 8 Apr Shift 1
If 10 gas molecules each of mass kg collide with a surface perpendicular to it elastically per second over an area 1 with a speed 104 the pressure exerted by the gas…
JEE Main 2019 9 Jan Shift 1
A mixture of 2 moles of helium gas atomic mass and 1 mole of argon gas atomic mass is kept at 300 in a container The ratio of their speeds Vims helium Vems argon 7 8…
JEE Main 2018 Set B (offline)
The mass of a hydrogen molecule is 3.32 10 kg If 10 hydrogen molecules strike per second a fixed wall of area at an angle of 45 to the normal and rebound elastically…

Question text shown from the scanned paper; open the test to see each question exactly as printed.

Kinetic Theory – JEE Main Previous Year Questions (2015–2025)

Kinetic Theory questions by paper

Sample questions

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