# Dalton's Law

Written by Jerry Ratzlaff. Posted in Fluid Mechanics

Dalton’s law states that the total pressure of a gas mixture is equal to the sum of the partial pressures of the individual gas components of the mixture.

## formula

$$P_{total} = P_1 + P_2 + P_3 +...P_n$$

Where:

$$P_{total}$$ = the total pressure of a gas mixture.

$$P_1 P_2 P_3 ...P_n$$ = the partial pressures of the individual gas components of the mixture.