According to kinetic theory of gases, which one of the following statements is wrong? (a) All the molecules of a gas are identical. (b) Collisions between the molecules of a gas and that of the molecules with the walls of the container are perfectly elastic. (c) The molecules do not exert appreciable force on one another except during collision. (d) The pressure exerted by a gas is due to the collision between the molecules of the gas.

Answer: (d). (a), (b), (c) are standard assumptions of kinetic theory. (d) is wrong: pressure comes from molecules colliding with the walls of the container (momentum transfer to the walls), not from collisions between molecules. So the answer is (d).

According to kinetic theory of gases, which one of the following… | MHT CET 2023 (9 May, Shift 1)

Q10MHT CET 2023 · 9 MAY · SHIFT 1Easy

Mean Free Path & Real Gases

According to kinetic theory of gases, which one of the following statements is wrong?

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Answer: (d)

(a), (b), (c) are standard assumptions of kinetic theory.
(d) is wrong: pressure comes from molecules colliding with the walls of the container (momentum transfer to the walls), not from collisions between molecules.
So the answer is (d).

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Mean Free Path & Real Gases question from MHT CET 2023 (9 May, Shift 1)

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