Question

Which best defines partial pressure in a mixture of gases? pressure that is exerted by all the gases of a mixture on the container pressure that is exerted by one gas as if it occupied a container by itself half of the pressure that is exerted by the gases of a mixture on the container sum of the individual pressures that are exerted by two or more gases

Answer 1

The best definition is pressure that is exerted by one gas as if it occupied a container by itself. The partial pressure of one gas in a mixture of gases, contained in a given volume, is the pressure that one gas would exert if it occupied the entire volume all by itself.