A binary liquid solution is prepared by mixing n-heptane and ethanol. Which one of the following statements is correct regarding the behaviour of the solution?

Options

A. The solution is non-ideal, showing- ve deviation from Raoult's Law.
B. The solution is non-ideal, showing + ve deviation from Raoult's Law.
C. n-heptane shows + ve deviation while ethanol shows -ve deviation from Raoult's Law.
D. The solution formed is an ideal solution.

Answer

B

Explanation

For this solution intermolecular interactions between n-heptane and ethanol are weaker than n-heptane-nheptane & ethanol-ethanol interactions hence the solution of n-heptane and ethanol is non-ideal and shows positive deviation from Raoult's law.