Volume of some air saturated with water vapour is 80 cm^3 at the pressure of 74 cmHg .Keeping the temperature fixed, if pressure is taken to 146 cmHg, then the volume is halved. What is the pressure of the water vapour in this state?

Volume of some air saturated with water vapour is 80 cm^3 at the press

1.	Volume of some air saturated with water vapour is 80 cm^3 at the pressure of 74 cmHg .Keeping the temperature fixed, if pressure is taken to 146 cmHg, then the volume is halved. What is the pressure of the water vapour in this state?
Answer» ANSWER :2cmHg