Discussion
While ice melts at 0°C, its temperature :
Answer: D
The temperature remains the same.
While ice melts, the heat supplied is used to break the forces holding the particles in the solid, as latent heat of fusion. It does not raise the temperature, so the ice and water stay at 0°C until all the ice has melted.
The temperature neither rises nor falls during the change of state, so the other options are wrong.
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