Question

What is meant by negative deviation from raoults law?

Answer 1

Positive deviations : ... In this type of deviations,the partial vapour pressure of solutions is less than that of ideal solution of same composition.Boiling point of such a solution is relatively higher than the boiling points of both the components.This type of behavior is known as negative deviation.

Answer 2

In this type of deviations , the partial vapour pressure of solution is less than that of ideal solution. Boiling point of such solution is relatively higher than boiling point of both components of substance