Question

If a gas is allowed to expand at constant temperature then: (A) Number of molecules of the gas decreases (B) The kinetic energy of the gas molecules decreases (C) The kinetic energy of the gas molecules increases (D) The kinetic energy of the gas molecules remains the same

Answer 1

If a gas is allowed to expand at constant temperature then:
(A) Number of molecules of the gas decreases (B) The kinetic energy of the gas molecules decreases
(C) The kinetic energy of the gas molecules increases
(D) The kinetic energy of the gas molecules remains the same
Ans. (C) The kinetic energy of the gas molecules increases
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