What is the partial pressure of a gas in a mexture of gases?

Answer 1

The partial pressure of a gas in a mixture of gases is the pressure that gas would exert if it occupied the entire volume of the mixture alone, at the same temperature. It is calculated using Dalton's Law of Partial Pressures, which states that the total pressure of a gas mixture is equal to the sum of the partial pressures of each individual gas. The partial pressure can be determined by multiplying the mole fraction of the gas by the total pressure of the mixture. This concept is crucial in understanding gas behavior in various applications, including respiratory physiology and chemical reactions.