Question

Water has more energy compared to ice at the same temperature. But ice has more cooling effect than water at 0 degree Celsius. Why?

Answer 1

With a well designed heat exchanger, ice can be more effective than water at the same temperature because, heat that can be absorbed by ice would have its latent heat of fusion which can be given up to produce greater heat exchange.

Heat exchange with ice = (Q-ice = mass of ice X latent heat of fusion) + [Q-water = mass of ice (melted into water) X sp. heat X temperature difference]

Answer 2

Explanation:

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because ice at 273 K is more effective in cooling than water at the same temperature As Ice take latent heat from the answer for melting and hence cools the substance more effectively than water at the same temperature ...

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