(D) According to Raoult's Law,the total vapor pressure $P$ of a binary mixture is given by $P = P_Y^0 + (P_X^0 - P_Y^0)X_x$.Comparing this with the gi

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

(D) According to Raoult's Law,the total vapor pressure $P$ of a binary mixture is given by $P = P_Y^0 + (P_X^0 - P_Y^0)X_x$.Comparing this with the given equation $P = 160X_x + 50$:$P_Y^0 = 50 \text{ torr}$ (vapor pressure of pure $Y$)$P_X^0 - P_Y^0 = 160$$P_X^0 - 50 = 160 \implies P_X^0 = 210 \text{ torr}$ (vapor pressure of pure $X$)The ratio of vapor pressures of pure $X$ and $Y$ is $\frac{P_X^0}{P_Y^0} = \frac{210}{50} = \frac{21}{5} = 4.2 : 1$.

Class 12 Chemistry Solutions Lowering of vapour pressure

Easy

The vapor pressure of a liquid mixture of $X$ and $Y$ is given by the equation $P = 160X_x + 50$,where $X_x$ is the mole fraction of $X$. The ratio of the vapor pressures of pure liquids $X$ and $Y$ is:

A
$3.5 : 1$
B
$3 : 1$
C
$4 : 3$
D
$4.2 : 1$

Explore More

Browse All

Question Bank

All Subjects

Class 12 Questions

Class 12

Chemistry Questions

Chapter

Solutions

Subtopic

Lowering of vapour pressure

Vapour pressure of a solution containing $18 \ g$ of glucose and $178.2 \ g$ of water at $100^{\circ} C$ is (Vapour pressure of pure water at $100^{\circ} C = 760 \ torr$) (in $torr$)

MediumKCET 2024

View Solution

Which of the following changes will cause an increase in the vapour pressure of a $1 \ m$ aqueous $KI$ solution at the same temperature?

MediumMHT CET 2020

View Solution

The relative lowering of vapor pressure is equal to the mole fraction of the non-volatile solute. This statement was given by whom?

Easy

View Solution

Calculate the mass of a non-volatile solute (molar mass $40 \, g \, mol^{-1}$) which should be dissolved in $114 \, g$ octane to reduce its vapour pressure to $80 \%$.

Easy

View Solution

The vapor pressures of two liquids $A$ and $B$ are $80 \ mm$ and $60 \ mm$ respectively. If $3 \ mol$ of $A$ and $2 \ mol$ of $B$ are mixed,the total vapor pressure of the resulting solution will be .......... $mm$.

Medium

View Solution

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial

For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free

For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo

The vapor pressure of a liquid mixture of $X$ and $Y$ is given by the equation $P = 160X_x + 50$,where $X_x$ is the mole fraction of $X$. The ratio of the vapor pressures of pure liquids $X$ and $Y$ is:

Similar Questions

Vapour pressure of a solution containing $18 \ g$ of glucose and $178.2 \ g$ of water at $100^{\circ} C$ is (Vapour pressure of pure water at $100^{\circ} C = 760 \ torr$) (in $torr$)

Which of the following changes will cause an increase in the vapour pressure of a $1 \ m$ aqueous $KI$ solution at the same temperature?

The relative lowering of vapor pressure is equal to the mole fraction of the non-volatile solute. This statement was given by whom?

Calculate the mass of a non-volatile solute (molar mass $40 \, g \, mol^{-1}$) which should be dissolved in $114 \, g$ octane to reduce its vapour pressure to $80 \%$.

The vapor pressures of two liquids $A$ and $B$ are $80 \ mm$ and $60 \ mm$ respectively. If $3 \ mol$ of $A$ and $2 \ mol$ of $B$ are mixed,the total vapor pressure of the resulting solution will be .......... $mm$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module