A small sample of gas is released in a corner of the room and starts to diffuse to the other side. If the room pressure is increased, will the gas diffuse faster, slower, or at the same speed?

Question

fellowroot · Answer

I know that if you take a tin can and you pump the air out of it the pressure from the outside will crush the can inward due to the pressure differences. Pressure should just be a force acting everywhere. I would think that if you increased the pressure you would also be increasing the temperature too and if the temperature increases then the gas surely would diffuse faster.

fellowroot · Answer

I know the correct answer now. YES. Increasing the pressure increases the temperature. Think of a container filled with gas. If the container gets small the molecules move faster and collide more often this increases the temperature. Actually a diesel engine works like this. It compresses gas so much that the gas will ignite making the engine work.