1(xi)
During melting of ice at 0°C the :
- (a)energy is released and temperature remains constant.
- (b)energy is absorbed and temperature remains constant.
- (c)energy is released and temperature decreases.
- (d)energy is absorbed and temperature increases.
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energy is absorbed and temperature remains constant.
Reason — When ice melts at 0°C, it absorbs heat energy from the surroundings which is used completely for phase change from solid (ice) to liquid (water) so this energy does not increase the temperature during the process.