When a substance evaporates, what happens to the mass? (4 points) the mass increases as it changes from a liquid to a gas. the mass decreases as it changes from a liquid to a gas. the mass stays constant as it changes from a liquid to a gas. there is no mass once the substance becomes a gas.

The diagrams to the right show the distribution and arrangement of gas particles in two different containers. according to kinetic-molecular theory, which of the following statements is true? check all that apply. if the temperatures of both containers are equal, container a has greater pressure than container b. if the volume of container a decreased, its pressure would decrease. if the pressure in both containers is equal, container a has a lower temperature than container b.