water molecules moving apart. cold air penetrating the hot water. heat from the water moving into the cooler air. hot water reacting with the metal pan.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: A pan containing hot water is left on the counter and becomes cool mainly due to
Possibilities:
- water molecules moving apart.
- cold air penetrating the hot water.
- heat from the water moving into the cooler air.
- hot water reacting with the metal pan.

heat from the water moving into the cooler air.