Question

Explain, why is water used as a coolent in motor car radiators?

Why is water used as a coolant in motor car radiators?

Answer 1

Water has the highest specific heat capacity of 4.2 Jg^-1 °C^-1 and its temperature does not rise beyond 100°C. Thus, it can absorb large amount of heat from the working engine, which is then radiated out through radiator Thus, on low temperature the engine works efficiently.