Rationalised 2023-24
11
Solutions
components 1 and 2 respectively in the vapour phase then, using Dalton’s
law of partial pressures:
p1 = y1 ptotal
(1 17)
p2 = y2 ptotal
(1 18)
In general
pi = yi  ptotal
(1 19)
Vapour pressure of chloroform (CHCl3) and dichloromethane (CH2Cl2)
at 298 K are 200 mm Hg and 415 mm Hg respectively