Vapor pressure ___________ as the temperature of the liquid in equilibrium with it increases.
increases?
increasse
Vapor pressure increases as the temperature of the liquid in equilibrium with it increases. This relationship is known as the Clausius-Clapeyron equation. To understand why this is the case, we need to consider the kinetic theory of gases.
The kinetic theory states that the particles in a gas are constantly moving and colliding with each other and the walls of its container. Some of these particles have enough energy to overcome the attractive forces between them and escape into the gas phase, forming a vapor. The pressure exerted by these escaped particles is called vapor pressure.
When the temperature of a liquid increases, the average kinetic energy of its particles also increases. This means that more particles have enough energy to escape and transition into the gas phase, leading to an increase in the number of gas molecules present and consequently an increase in vapor pressure.
In summary, as the temperature of a liquid in equilibrium with its vapor increases, more particles gain sufficient energy to escape into the gas phase, resulting in an increase in vapor pressure.