State and explain Dalton's law of partial pressures.

Explanation

Dalton's law of partial pressure: At constant temperature the total pressure exerted by a gaseous mixture which do not react chemically with each other is equal to the sum of partial pressures of the component gases.
Consider a mixture of three gases in a vessel Let `p_1.p_2.p_3` be the partial pressures of the three gases in the mixture . Let'P' be the total pressure exerted by the gaseous mixture. Then according to Dalton'law of partial pressure
`P=p_1+p_2+p+3`