Home
Class 12
CHEMISTRY
Liquid ‘M’ and liquid ‘N’ form an ideal ...

Liquid ‘M’ and liquid ‘N’ form an ideal solution. The vapour pressures of pure liquids ‘M’ and ‘N’ are 450 and 700 mmHg, respectively, at the same temperature. Then correct statement is:
( `x_(M)=`Mole fraction of ‘M’ in solutions , `" " x_(N)=` Mole fraction of ‘N’ in solution ,
`y_(M)=`Mole fraction of ‘M’ in vapour phase , `" " y_(N)=` Mole fraction of ‘n’ in vapour phase)

A

`(x_M)/(x_N)lt (y_M)/(y_M)`

B

`(x_M-y_M)lt(x_N-y_N)`

C

`(x_M)/(x_N)gt (y_M)/(y_M)`

D

`(x_M)/(x_N)= (y_M)/(y_M)`

Text Solution

Verified by Experts

The correct Answer is:
C
Mole fraction of more volatile component increase in vapour phase. `(P_N^@ ltP_M^@)`
Promotional Banner

Similar Questions

Explore conceptually related problems

For an equimolar ideal mixture of A and B with p_(A)^(0)ltp_(B)^(0) : x_(A)= mole fraction of A in solution x_(B)= mole fraction of B in solution y_(A)= mole fraction of A in vapour phase y_(B)= mole fraction of B in vapour phase solution

The vapour pressure of pure liquid M & N are 700mm of Hg and 450mm of Hg respectively. Which of the following option is correct ? Given : X_(N),X_(M)= mole fraction of N & M in liquid phase Y_(N),Y_(M)= mole fraction of N & M in vapour phase

The vapour pressure of a certain pure liquid A at 298 K is 40 mbar. When a solution of B is prepared in A at the same temperature, the vapour pressure is found to be 32 mbar. The mole fraction of A in the solution is

For an ideal liquid solution with P_A^(@)gtP_A^(@) , which relation between X_(A) ((mole fraction of A in liquid phase) and Y_(A) (mole fraction of A in vapour phase) is correct ?

Consider two cylinder piston assembly as shown in figure (a) and in figure (b) are kept in vacuum. Assume both piston are massless. Let two masses m_(1) and m_(2) are kept on the piston as shown in figure. Values of m_(1) and m_(2) are in the range in which both liquid and vapour phase coexist and are in equilibrium. Solution I contains 10 moles of liquid A and 10 moles of liquid B while solution II contains 8 moles of liquid A and 12 moles of liquid B. Let liquids A and B are completely miscible and form an ideal binary solution. Given : P_(A)^(@) = 100 torr, P_(B)^(@) = 60 torr, Let X_(A) = mole fraction of A in liquid phase in solution I X'_(A) = mole fraction of A in liquid phase in solution II Y_(A) = mole fraction of A in vapour phase in solution I Y'_(A) = mole fraction of A in vapour phase in solution II If m_(1) = m_(2) then :

Consider two cylinder piston assembly as shown in figure (a) and in figure (b) are kept in vacuum. Assume both piston are massless. Let two masses m_(1) and m_(2) are kept on the piston as shown in figure. Values of m_(1) and m_(2) are in the range in which both liquid and vapour phase coexist and are in equilibrium. Solution I contains 10 moles of liquid A and 10 moles of liquid B while solution II contains 8 moles of liquid A and 12 moles of liquid B. Let liquids A and B are completely miscible and form an ideal binary solution. Given : P_(A)^(@) = 100 torr, P_(B)^(@) = 60 torr, Let X_(A) = mole fraction of A in liquid phase in solution I X'_(A) = mole fraction of A in liquid phase in solution II Y_(A) = mole fraction of A in vapour phase in solution I Y'_(A) = mole fraction of A in vapour phase in solution II If m_(1) = m_(2) then :

For an ideal binary liquid solutions with P_(A)^(@)gtP_(B)^(@) , which relation between X_(A) (mole fraction of A in liquid phase) and Y_(A) (mole fraction of A in vapour phase) is correct: