Question

Vapour pressure a is 100 mmhg and vapour pressure of b is 150 mmhg distillate of vapours ofa solution

Answer 1

Given that p°a = 0.80 ATM

and Pa = 0.60 ATM

we know that,

(p°a - Pa)/p°a = Xb

[.80 - .60]/0.8 = Xb

0.2/.8 =Xb

Xb =. 1/4