Q. Some gas at 300 K is enclosed in a container. Now, the container is placed on a fast moving train. While the train is in motion, the temperature of the gas
A) Rises above 300 K
B) Falls below 300 K
C) Remains unchanged
D) Become unsteady
Explanation
(a) According to kinetic theory, molecules of a liquid are in a state of continuous random motion. They continuously collide against the walls of the container. During each collision, certain momentum is transferred to the walls of the container. So, kinetic energy of molecules increases, hence due to random motion, the temperature increase. So, random motion of molecules and not ordered motion cause rise of temperature.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.