Two solutions of A and B are available. The first is known to contain 1 mole of A and 3 moles of B and its total vapour pressure is 1.0 atm. The second is known to contain 2 moles of A and 2 moles of B; its vapour pressure is greater than 1 atm, but it is found that this total vapour pressure may be reduced to 1 atm by the addition of 6 moles of C. The vapour pressure of pure C is 0.80 atm. Assuming ideal solutions and that all these data refer to 25°C, calculate the vapour pressure of pure A and of pure B.
Text Solution
Verified by ExpertsCHECK THE SOLUTION.
P B 0 = 0.7 atm o P A 0 = 1.9 atm
The data provide the following two expressions for total pressure
or 4 = P A 0 + 3P B 0 and 
or 4 = P A 0 + P B 0 + 2.4
on solving these two equations simultaneously, one obtains P B 0 = 0.7 atm and P A 0 = 1.9 atm.
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems