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Would you cool a bucket of water more quickly by placing it on ice or by placing ice in it? Give reasons for your answer.
We would place ice in the water to cool it more quickly because the ice takes its latent heat from the water and hence cools it more effectively.
On the other hand, on keeping the water on ice, the latent heat would be taken from the surrounding air, hence, releasing its coolness to the surrounding and not the water.
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