8. A gas is trapped in the apparatus shown at the right with a movable
piston.
1.00 atm
(a) Assuming the piston moves with no friction and has negligible
weight, what is the pressure inside the container (P,)?
P1
(b) By what percentage will the volume increase if the temperature is raised from 20.0°Cto 40.0°C
and the exterior pressure is constant?