the amount of heat utilised to convert 1kg ice cube at -10 degree celsius into water vapour at 100 degree celsius is K.Cal
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Because when ice melts it absorbs tremendous amounts of heat, much much more than when water warms up.
According to Quantum Physics, when one kg of ice melts, “333.55 kJ of energy is absorbed with no temperature change.” So, that’s 334J per gram of ice. One gram of water only absorbs 4.2J when it’s temperature goes up by 1degree C.
In the same way, water absorbs considerable heat in the act of evaporating: each gram of water at 100degrees C that evaporates absorbs 2257J.
Explanation:
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