Question

the volume of a gas varies inversely as the pressure on it. if the volume is 240 cm^3 under a pressure of 30 kg/cm^2, what pressure must be applied to have a volume of 120cm^3​

Answer 1

V varies 1/P.

V=K/P.

K=VP.

K=240×30.

=7200.

Therefore 7200=VP.

so.....

7200=120P.

P=7200/120.

P=60kg/cm^2.