Need help with this question please Assume that you have a l

Need help with this question please

Assume that you have a liquid in a cylinder equipped with a movable piston. There is no air in the cylinder, the volume of space above the liquid is 200 inL, and the equilibrium vapor pressure above the liquid is 21.0 inm Hg (Figure 1) What is the equilibrium pressure above the liquid when the volume of space is decreased from 200 mL to 100 mL at constant temperature?

Solution

vapour pressure remain costant with change in volume and pressure and changes only with temperature