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CGP EDU Academic Team
Published on: August 14, 2026
An ideal solution contains two volatile liquids A (pº = 100 torr) and B (pº = 200 torr). If mixture contain 1 mole of A and 4 mole of B then total vapour pressure of the distillate is:
Text Solution
Verified by ExpertsThe correct answer is:
C
P = P A º x A + P B º x B
⇒ 100 × 
⇒ 180 torr
y A (composition of A in vapour phase) = 
⇒ 
⇒ 
, Y B = 
For condensation y A = x 1 A ; y B = x 1 B
P total = P A º x A 1 + P B º x B 1 ;
P total = 100 × 
× 200 ⇒ 188.88 torr
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