Chapter 12, Problem 132SAE

Interpretation Introduction

Interpretation:

When the lid of the vapor containing liquid and vapor in equilibrium is removed, some vapor is diffused, this result needs to be explained.

Concept introduction:

When a liquid is in anopen container, the liquid evaporates completely as all the liquid molecules can diffuse into the air. If the liquid is placed in a closed container, itdoes not evaporate completely. Instead, liquid is vaporized until a certain vapor pressure has been built up. After that the vapor above the liquid forms a thermodynamic equilibrium with its liquid in which vaporization rate and condensation rate becomes equal. The vapor pressure is different for different liquids and increases with temperature.