Question

what is the partial pressure of a gas in a mixture of gases?
a. the sum of the individual gas pressures in the mixture
b. the pressure each gas would contribute at stp
c. the pressure exerted by one gas in a mixture
d. the average pressure of the individual gases

Explanation:

The partial pressure of a gas in a gas - mixture is defined as the pressure that gas would exert if it alone occupied the volume of the mixture at the same temperature. In other words, it is the pressure exerted by one gas in a mixture.

Answer:

C. The pressure exerted by one gas in a mixture