Playing in the snow without gloves can lead to visible evaporation of water from the skin due to the heat from the hand warming the water, combined with cold air and low humidity. This evaporation occurs as water molecules gain enough energy to transition from liquid to gas, moving from an area of high concentration (the hand) to lower concentration (the air). The boiling point of water is typically presented as a fixed value, but it varies based on factors like temperature and atmospheric pressure. The relationship between boiling point and vapor pressure is crucial; boiling occurs when vapor pressure equals atmospheric pressure. For further understanding, phase diagrams can illustrate how boiling points change with elevation and pressure.
