Question

Who can do this?
Air at atmospheric pressure(760 mm Hg) is trapped inside a container as shown in the diagram

Answer 1

When the piston is pulled slowly so that the volume is increased by 20%, the temperature remaining constant, the pressure of the air becomes

A) 912 mm Hg
B) 950 mm Hg
C) 608 mm Hg
D) 633 mm Hg

Answer 2

the answer is (D)
and you can do it by assuming it to be an isothermal process
for an isothermal process, P1V1=P2V2
where P1 and V1 are the initial pressure and volume and P2 , V2 are the final pressures and volumes
so here, P1=760(mm of hg)
V1=V(i have assumed it to be V)
V2=1.2V as the question says that the final volume is increased by 20%
we getP2=633mm of hg
i hope this helps you:)

Answer 3

hey @Gebooors thanks for the medal!

Answer 4

thanks for the medal @sheelo73mughal