Amagat law of partial volumes.

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Answer:-
This law states that; 
“When two or more gases which do not react chemically are enclosed in a vessel,then the total volume of the gaseous mixture is equal to the sum of the partial volumes, where partial volume of gas is the volume occupied by that gas at the same temperature and pressure of the mixture."
Mathematically, 
        V(mix)=V1+V2+V3+..........

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