[gear2d]

In PV=nRT, when vol decreases, why do Pressure and Temp decrease?

[enahs]

You can increase/decrease the volume and keep the pressure constant, and thus temperature has to increase/decrease, or you can keep the temperature constant and the pressure has to increase/decrease. You can increase/decrease pressure and keep volume constant, and so temperature has to increase/decrease.

And every other possible combination you can think of.


The left side has to be equal to the right side is all.
R does not change, and it would make things pretty complicated to change n too much.

What are the assumptions in an ideal gas?