# Does increasing the pressure of the gas in a container by pumping gas into it increase temperature?

Basis is the ideal gas law: http://en.wikipedia.org/wiki/Ideal_gas_law

This law only states a mathematical relationship between many variables. It does not state what happens if one of the variables changes.

So we pin down the volume and increase moles of air by pumping in more gas. n obviously changes, so does P. But what happens to T? Does the temperature change at all?

-
If the air is pumped in fast enough, you can assume that it happens adiabatically, so: $pV^{\gamma}=constant$ – fibonatic May 20 '13 at 22:30