Is the freezing of n-octane an endothermic or exothermic process?

Exothermic reaction

Explanation:

The freezing of n-octane is an exothermic reaction.

An exothermic reaction is a type of reaction in which energy usually in the form of heat is released to the environment. In an exothermic reaction, the reactants are at a higher energy level compared to the product. Hence heat energy is usually released.

Now, freezing is a change in state from the liquid state to the solid state, for example, the turning of water to ice block.

In freezing, energy is released and hence, thus it is an exothermic reaction