How does the evaporation of a substance affect mass, volume, and density?

Question

thanks for any help.

Answer 1

1) Mass no
2) Volume - sealed container - no - opened container yes.
3) Density - yes if opened container, no if sealed.

Answer 2

Obviously, the mass of the liquid is going to be reduced, but if you measured the weight of a closed container of evaporating liquid, you wouldn't notice a change since the mass lost due to evaporation is still present in the form of a vapor in the closed container. The mass will only decrease if the container is left open to the atmosphere, and the vapor can disperse.

Volume will likewise decrease, and density should remain the same.

Answer 3

Argon is a retard. The mass stays the same, there is still the same amount of the substance!