Chapter 12, Problem 31RQ

Interpretation Introduction

Interpretation:

In terms of intermolecular attractions, the reason behind the difference in vapor pressure of octane over a solution when mixed with methanol and the vapor pressure which is calculated by Raoult’s law is to be discussed.

Concept Information:

Pressure that is exerted by vapor when it is in equilibrium with a solid or liquid form of the same substance is known as vapor pressure. Vapor pressure increases with temperature.

Vapor pressure of non-volatile solutes in a solution is lower than pure solvents. This is given by Raoult’s law.