The volume V of a gas varies inversely as the pressure P on it. If the volume is 250 cm3 under a pressure of 35 kg/cm3, solve for the pressure applied to have a volume of 180 cm3. Be sure to define your variables, find your constant variable, construct your variation equation, and then solve.

Answer 1

V = k/P, so
PV = k

you want P such that

180P = 250*35

By the way, pressure is in Pascals = N/m^2, not kg/cm^3

kg/cm^3 is density