Question

1. 1.32 g of a gas measured over water at 25°C and a pressure of 790 mm of mercury
occupied 700 ml. Calculate the volume of dry gas at N.T.P. Vapour pressure of water
at 25°C is 20 mm.​

Answer 1

Explanation:

The vapour pressure of water is the pressure at which water vapour is in thermodynamic equilibrium with its condensed state. At higher pressures water would condense. The water vapour pressure is the partial pressure of water vapour in any gas mixture in equilibrium with solid or liquid water