PLEASE HELP A student is asked to draw a model that shows evaporation of a liquid. Balls will represent molecules, and arrows will represent motion. Longer arrows mean faster motion. Describe how you would show the spacing and motion of the molecules in the liquid state.
1, Describe how you would show the spacing and motion of the molecules in the gas state above the liquid surface.
2, Explain how you would show that evaporation is taking place, rather than condensation.