Chemistry

Dalton's Law of Partial Pressure

In a mixture of gases,the total pressure of the mixture is equals to the sum of the partial pressures of the individual gases.

Real Gases

At very low pressure

The volume of gas is large,the gas molecules are far apart.Thus,the size of molecules are very small and the intermolecular forces can be ignored~

At very high temperature

The kinetics energy of molecules are very high.The molecules are moving rapidly and the intermolecular forces can be ignored~

Vapour Pressure

Vapour pressure of the liquid is the pressure exerted by its vapour when it is in equilibrium with the liquid at a given temperature.