Relative lowering of vapour pressure is directly proportional to

Relative lowering of vapour pressure is directly proportional to the mole fraction of solute. Hence, it is a colligative property.

Raoult’s law

The law was discovered by the French chemist Francois Raoult (1830–1901). It states that the partial vapour pressure of a solvent is proportional to its mole fraction.

If p is the vapour pressure of the solvent (with a substance dissolved in it) and X the mole fraction of solvent (the number of moles of solvent divided by the total number of moles), then

;p = p0X,

where p0 is the vapour pressure of the pure solvent.

  • A solution that obeys Raoult’s law is said to be an ideal solution.

Was this answer helpful?

  
   

0 (0)

Upvote (0)

Choose An Option That Best Describes Your Problem

Thank you. Your Feedback will Help us Serve you better.

Leave a Comment

Your Mobile number and Email id will not be published. Required fields are marked *

*

*

BOOK

Free Class

Ask
Question