Physics
On a hot summer day, we often put ice cubes to cool the water. Why?
Calorimetry
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Answer
Ice is added to warm water on a hot summer day because it absorbs heat from the water to melt. This happens due to the latent heat of fusion, which is 336 J/g, the amount of energy required to change ice from solid to liquid without a rise in temperature. As ice absorbs this heat, the water loses energy, leading to a drop in its temperature and making it cooler.
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