Which is the most accurate description of how the coolant works in an engine?

coolant absorbs thermal energy.
combustion absorbs thermal energy.
coolant absorbs chemical energy.
combustion absorbs chemical energy.

Option (a) is the correct answer.

Explanation:

Thermal energy is the energy present within the molecules of an object. Whereas a chemical energy is the energy that occurs with occurrence or breakage of a bond in a chemical reaction.

A coolant is a mixture that helps in absorption of excess heat generated when an engine is running. During the running of engine, thermal energy increases due to which excess of heat is released and this heat is absorbed by the coolant so that temperature of the system remains maintained.

Thus, we can conclude that coolant absorbs thermal energy is the most accurate description of how the coolant works in an engine.

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