JEE Mains Model Paper 9

Question : 35 of 90

Marks: +1, -0

If 10−4dm3 of water is introduced into a 1.0 dm3 flask to 300 K, how many moles of water are in thevapour phase when equilibrium is established?
(Given : Vapour pressure of H2O at 300 K is 3170 Pa ; R = 8.314 J K−1mol−1)