CHEM 101 Lecture Notes - Lecture 6: Ideal Gas Law, Evaporation, Reagent
Document Summary
The partial pressure of a gas in a mixture of gases is the same as the pressure this gas would have at the same conditions (same volume container, same temperature, same moles) alone. Put gas a in a tank and measure pressure and amount. Put gas b in a tank and measure pressure and amount. Put both gas a and b in a tank and measure the pressure of the mixture. Ptotal = pa + pb + pc + . How gases behave in mixture is independent of the identity of the gas. How a gas behaves on its own is the same as how it behaves in a mixture. When you create a mixture of two gasses, you"re simply adding more gas particles which will increase the pressure. This result comes from the idea gas law. Implies that gases in a mixture don"t notice" each other"s presence.
