The total pressure in a mixture of gases is equal to the partial pressure of all the gases added together
According to Dalton's Law of Partial Pressure, The total pressure exerted by a mixture of gases which are non reacting is equal to the sum of the partial pressure of each individual gas that make up the mixture
Mathematically, Ut can be written as
P{total}= p1+p2, ....+ pn
where p1, p2, …, pn are partial pressures of each gas component.
For example :A gaseous mixture consisting of Helium and Nitrogen gas . If the pressure exerted by He is 3 atm while Nitrogeb exerted is 9 atm. The total pressure will be:
P{total}= p1+p2, ....+ pn
P{total}= 3+9
P{total}= 12
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