Why is water used as a coolant in engines?

Water is used as a coolant in engines because it has a high specific heat capacity, which means it can absorb a large amount of heat without a significant rise in temperature.

During the combustion of fuel in an engine, a large amount of heat is produced. Water circulating in the radiator system absorbs this heat and carries it away, preventing the engine from overheating.

By cooling the engine, water helps in:

• Maintaining proper engine temperature
• Preventing damage to engine parts
• Increasing engine efficiency and lifespan