18
Note: Since, CH2Cl2 is a more volatile component than CHCl3, [
2
p0CH Cl2
=
415 mm Hg and 
p0CHCl3
= 200 mm Hg] and the vapour phase is also richer
in CH2Cl2 [
2
yCH Cl2
= 0 82 and 
yCHCl3
= 0 18], it may thus be concluded
that at equilibrium, vapour phase will be always rich in the component
which is more volatile Example 1