ice at 0°C is much cooler to touch than water at 0°C in spite of both having same temperature. give reason?
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Both ice and liquid water can exist at 0 degrees C. However, ice has a very significant heat of fusion the number of calories required to melt melt each gram, whereas water has only its 1 calorie per gram per degree C specific heat. Therefore, ice which must melt before it can go above 0 degrees must absorb much more heat to increase its temperature than water at 0 degrees. In consequence, ice is far more effective as a cooling agent.
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