You push down on the piston of a pump, and the volume decreases by half, which of the following happens?

Question

The temp inside the piston triples

The number of collisions per unit area is reduced by one-half

The temp inside the chamber is reduced by one-half

The number of collisions per unit area dounle

Answer 1

Pressure is a measure of collisions. Since the volume decreases the gas molecules are now confined to a smaller space (volume) and thus there will be more collisions per unit area. Last answer choice