Question

What is the Dalton law of partial pressure equation?

Answer 1

Dalton's law of partial pressures states that in a gaseous mixture, the pressure exerted by a component is the same as if that component ALONE occupied the container..........

Explanation:

......The total pressure is the sum of the individual partial pressures.

So we have a gaseous mixture of gases `A`, `B`, `C`, etc.

`P_"Total"` `=` `P_A+P_B+P_C...............`

Reasonably we can idealize gas behaviour, i.e. `P_A=(n_ART)/V`

`P_"Total"` `=` `(n_ART)/V+(n_BRT)/V+(n_CRT)/V...............` `=` `(RT)/V{n_a+n_B+ n_C...............}`.

We can thus say that the partial pressure of a gas in a gaseous mixture is proportional to its mole fraction.