Question

What is meant by the vapor pressure of water?

Answer 1

Vapor pressure of water:

1. In a closed container, the pressure of vapor above the sample liquid is called vapor pressure.
2. The type of molecules that make up the liquid is determined by vapor pressure.
3. If the vapor pressure is low then the intermolecular forces are stronger.
4. Some examples of vapor pressure are humid air, pressure cookers, and LPG cylinders.
5. To calculate vapor pressure we use Raoult's law. That is $P_{solution}=X_{solvent}.P_{solvent}$ Here $P_{solution}$ is the vapor pressure, $X_{solvent}$ is the mole fraction, and $P_{solvent}$ is the vapor pressure of the pure component.