Question

Ice at 0 degree Celsius is better coolant than water at 0 degree Celsius. Give the reason.

Answer 1

Ice at 0 degree is a better coolant as it it can absorb more heat while keeping the temperature constant as it can take the latent heat of fusion before there is any rise in temperature.

Answer 2

because 1 gram ice at 0 degree celsius would absorb 336 joule of heat energy more than 1 gram of water at 0 degree, from the surroundings thus making it more cooler.