Some gas at 300K is enclosed in a container. Now the container is placed on a fast moving train.is the change in temperature of the gas the same as the change dT observed when train suddenly stops?
1/2mv^2=dU?? or dU=0??
The Attempt at a Solution
intuitively, there is no change in relative velocity of molecules anyhwere so dT=0 everywhere. But according to my high school textbook, when train suddenly stops- ordered kinetic energy changes to disordered kinetic energy therefore raising internal energy by 1/2mv^2