A closed metal container that is filled with hot water gets distorted or compressed when it is kept under the tap water. Why?

Explanation:

The closed metal container will get distorted or compressed due to a combination of two reasons:

1. contraction of the metal container as a result of a reduction in its temperature.

2. a reduction in the pressure inside the container caused by a sudden drop in the temperature of the water inside it.

The tap water causes a reduction in the temperature of both the container and the water inside it. An increase in temperature causes metal to expand and a reduction in temperature causes it to contract. Also, water takes less space than steam. Therefore, a reduction in the temperature of the hot water causes a reduction in the pressure inside the container relative to the outside. This causes the metal container to be compressed.

the answer is:

carbon dioxide