Question

Consider the statement below. “When nitrogen is liquefied, heat is released.” Is this statement true or false?

Answer 1

It is true because heat is released when a gas changes to a liquid

Answer 2

Answer:

The state is true.

Explanation:

Phase change from solid to liquid to gas is an endothermic process. Heat is absorbed when solid melts or liquid evaporates.  And the reverse is true. When gas liquefies or a liquid solidifies heat is released and the process is exothermic.

Therefore, when nitrogen gas turns to liquid nitrogen heat is released.