Physics · JEE

Important Questions: Kinetic Theory of Gases for JEE

3+ syllabus-aligned questions available

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The most important Kinetic Theory of Gases questions for JEE cover conceptual traps, standard results, and numerical patterns from Equation of state of a perfect gas, work done on compressing a gas, Kinetic theory of gases: assumptions, the concept of pressure, kinetic interpretation of temperature, RMS speed of gas molecules, degrees of freedom, Law of equipartition of energy and applications to specific heat capacities of gases, and more. Goodmarks provides 3+ high-yield MCQs with full solutions.

Focus on what matters most. These important Kinetic Theory of Gases questions cover high-weightage concepts from Equation of state of a perfect gas, work done on compressing a gas, Kinetic theory of gases: assumptions, the concept of pressure, kinetic interpretation of temperature, RMS speed of gas molecules, degrees of freedom, Law of equipartition of energy and applications to specific heat capacities of gases, and more — the topics JEE repeats every year.

Subtopics in Kinetic Theory of Gases

Equation of state of a perfect gas, work done on compressing a gas
Kinetic theory of gases: assumptions, the concept of pressure, kinetic interpretation of temperature
RMS speed of gas molecules, degrees of freedom
Law of equipartition of energy and applications to specific heat capacities of gases
Mean free path, Avogadro's number

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Q1PhysicsUnit 9: Kinetic Theory of Gases

If for a gas

\frac{\boldsymbol{R}}{\boldsymbol{C}_{\boldsymbol{v}}}=\mathbf{0 . 6 7},

then the gas is made up of molecules which are :

Q2PhysicsUnit 9: Kinetic Theory of Gases

Assertion

C_{P}

is always greater than

C_{V}

in gases. Reason Work done at constant pressure is more than at constant volume.

Q3PhysicsUnit 9: Kinetic Theory of Gases

The total kinetic energy of 1 mole of

N_{2}

27 \mathrm{C}

will be approximately

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Frequently asked questions

What makes a Kinetic Theory of Gases question "important" for JEE?

Important questions test core concepts that appear frequently across JEE Main and Advanced papers — definitions, standard formulas, and classic problem types.

Which subtopics in Kinetic Theory of Gases are high-weightage?

Key areas include Equation of state of a perfect gas, work done on compressing a gas, Kinetic theory of gases: assumptions, the concept of pressure, kinetic interpretation of temperature, RMS speed of gas molecules, degrees of freedom, Law of equipartition of energy and applications to specific heat capacities of gases, and more. Prioritise these before moving to edge cases.

How many important questions should I revise?

Revise 30–50 important MCQs per unit in the last month before JEE. Focus on questions you got wrong at least once.

Can I practise only important questions on Goodmarks?

Pro users can filter by unit and subtopic to target high-yield areas. Free users can attempt sample questions on this page.