Final answer:
Evaporation causes heat loss through phase change and evaporative cooling.
Step-by-step explanation:
Evaporation causes heat loss in two ways:
- Heat is lost through the process of phase change. When a liquid changes to a gas, such as water evaporating into water vapor, heat energy is required for this change to occur. This heat energy is taken from the surroundings, resulting in a decrease in temperature.
- Heat is also lost through evaporative cooling. When water evaporates from a surface, such as sweating from the skin, it takes heat energy with it. This is because the water molecules gain energy from the surroundings to change from a liquid to a gas, resulting in a cooling effect on the surface.