Question

A closed vessel contains some gas at a given temperature and pressure. If the vessel is given a very high velocity, the temperature of the gas

• A. increases
• B. decreases
• C. may increase or decrease depending upon the nature of the gas
• D. does not change

Answer 1

The correct option is D does not change

Pressure and Temperature are two thermodynamic parameters which are controlled by microscopic parameters of the system i.e speed of the molecules, their collision with the boundary and other molecules.
At a given temperature molecules move in a random fashion due to thermal energy. so when we move the container in a certain fashion that does mean random motion becomes a systematic motion i.e molecules are still moving in a random fashion and there is no change in motion of molecules with respect to each other and the container, hence no change in Temperature of the Gas.