“Relative lowering in vapour pressure of solution containing non-… - Vidyadip

MCQ

“Relative lowering in vapour pressure of solution containing non-volatile solute is directly proportional to mole fraction of solute”. Above statement is

A
Henry law
B
Dulong and Petit law
✓
Raoult's law
D
Le-Chatelier's principle

✓

Answer

Correct option: C.

Raoult's law

c
The above statement is Raoult's law. $\frac{ P ^0- P }{ P ^{\circ}}= X$

Raoult's Law

-From Raoult's law we see clearly that the amount of change in the vapor pressure is dependent on the amount of the nonvolatile solute added to the solution (mole fraction) not the quality of the solute.

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