Home
Class 12
CHEMISTRY
Mole fraction of component A in vapour p...

Mole fraction of component `A` in vapour phase is `chi_(1)` and that of component `A` in liquid mixture is `chi_2`, then (`p_(A)^@`)= vapour pressure of pure A, `p_(B)^@` = vapour pressure of pure B), the total vapour pressure of liquid mixture is

A

`(p_(A)^(@)chi_(2))/chi_(1)`

B

`(p_(A)^(@)chi_(1))/chi_(2)`

C

`(p_(B)^(@)chi_(1))/chi_(2)`

D

`(p_(B)^(@)chi_(2))/chi_(1)`

Text Solution

Verified by Experts

The correct Answer is:
A
`chi_(A)^(V)=(P_(A)^(@)chi_(A))/(P_("total"))=chi_(1)(P_(A)^(@)chi_(2))/(P_("total")) ` or `P_("total")=P_(A)^(@)(chi_(2)/chi_(1))`
Promotional Banner

Topper's Solved these Questions

  • SOLUTIONS

    CENGAGE CHEMISTRY|Exercise Ex 2.2 (Objective)|9 Videos

  • SOLUTIONS

    CENGAGE CHEMISTRY|Exercise Ex 2.3 (Objective)|9 Videos

  • SOLUTIONS

    CENGAGE CHEMISTRY|Exercise Exercises Archives (Subjective)|18 Videos

  • SOLID STATE

    CENGAGE CHEMISTRY|Exercise Ex 1.2 (Objective)|9 Videos

  • SURFACE CHEMISTRY

    CENGAGE CHEMISTRY|Exercise Archives Subjective|2 Videos

Similar Questions

Explore conceptually related problems

Vapor pressure of a solution of Volatile components and composition of vapor: Consider a solution containing 738 g of water and 253 g of ethanol (C_(2)H_(5)OH) at 323 K . At this temperature, the vapour pressure of pure ethanol is 0.292 atm and the vapor pressure of pure water is 0.122 atm . Calculate the vapour pressure of the solution and mole fraction of every component in vapour phase. Strategy: First calculate the moles and the mole fraction of each component in the liquid solution. Then apply Raoult's law to each of the two volatile components to calculate their partial pressures. The total vapour pressure is the sum of the partial vapour pressures of the components and the mole fraction of a components in a gaseous mixture equals the ratio of its partial pressure to the total pressure.

The vapour pressure of a mixture of two volatile liquids is given by P_(M) = 4.0X_(A)+3.0 . Find the vapour pressure of pure B .