The vapour pressure of homogenous mixture of 10 mole of liquid X and 30 mole of liquid Y at constant temperature is 550 mm. In this solution, 10 mole of liquid Y increases, hence, increase in vapour pressure is 10 mm. Then, find the vapor pressure of pure liquid X and Y at that temperature.
(a) P°x = 200 mm, P°y = 500 mm
(b) Pox = 400 mm, P°y = 600 mm
(c) P°x = 600 mm, P°y = 300 mm
(d) P°x = 350 mm, P°y = 500 mm