[boltzmann77]

i keep a container of gas in a room lets say the continer is perfectly conducting .so the gas molecules keep on moving and they use energy where does this energy come from and wherever it comes from shouldnt all the energy be used up as time passes and the molecules come to a standstill .ie if the gas molecules get energy the energy from the heat in the room shouldnt the room get cooler as time passes as the energy gets used up by the molecules for their movement

i know i sound weird someone please help me with this ..

thanx for your time

[Dan]

You can't "use up" energy like that. Energy cannot be created or destroyed, only transferred or converted into different forms.

Have a read of this http://en.wikipedia.org/wiki/Energy