A closed vessel containing some gas at atmospheric pressure and room temperature
A closed vessel containing some gas at atmospheric pressure and room temperature is placed in a fast moving train. The temperature of the gas will.
(a) remain unchanged
(b) increase or decrease depending on the chemical composition of the gas
(d) decrease
(d) increase
1. Remains unchanged.
Reason: The temperature of the gas depends on r.m.s. speed of particles, which is constant in this case. Speed of train did not change r.m.s. speed of particles.