1.

Conservation of energy holds good even when substances in different states are mixed. When they are mixed, the change in state consumes energy of the high temperature substance without any change in temperature and then the mixture works for a common temperature. Sometimes, the energy lost by the container also to be accounted. When 1g ice turns into water 80 calories of energy is consumed. After the change of state, the water formed will increase its temperature (Neglect heat capacity of the container) If in the first question, only 40 g water at 40^@Cisavailable with the container of water equivalent 80 g, then

Answer»

All ICE will MELT
Common TEMPERATURE will be more than `40^@C`
Common temperature will be more than `40^@C` and less than `12^@C`
Only afraction of ice WOULD have melt

Answer :A


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