Question
When you have been swimming and you come out of the pool, you
may feel cold. Use your understanding of endothermic processes to
explain why.
Suggest whether water freezing is an endothermie or exothermic
process. Can you explain your suggestion?
Answer
When you come out of the pool, your body temperature is lower than the surrounding air temperature, causing you to feel cold. This is an example of an endothermic process, as energy is being absorbed from the environment to equalize the temperature. Water freezing is an endothermic process, as energy is absorbed from the environment to convert the liquid water into solid ice.