Final answer:
The false statement is that 'Two gases in a container will have the same volume.' Gases fill the entire volume of their container, having the same volume as the container, rather than the same volume as each other.
Step-by-step explanation:
The statement among the options given that is false is: "Two gases in a container will have the same volume." This statement does not hold true for gases in general because each gas will occupy the entire volume of the container it is in, regardless of how many gases are present. When gases are mixed, each gas will fill the entire container, essentially having the same volume as the container itself, not the same volume as other gases.
Gases have low densities because their particles are very far apart. Increasing the temperature of a gas will generally decrease its density, as the increased kinetic energy causes the gas particles to spread out more. Conversely, increasing the pressure of a gas will generally increase its density, as the gas particles are forced closer together. Finally, gases do indeed mix to form homogenous mixtures; an example of this is air, which is a mixture of nitrogen, oxygen, and other gases.