When ice melts, the change in internal energy is greater than the heat supplied. Why ?
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When ice melts, the change in internal energy is greater than the heat supplied. Why ?
When ice melts, the change in internal energy is greater than the heat supplied. Why ?
When ice melts, volume of water formed is less than that of ice. So, surroundings (environment) does work on the system (ice).
And by first law,
∆Q = ∆ W + ∆U
∆U = ∆Q – ∆ W (∆ W= negative as work is done on the system)
∆U > ∆Q