Calculate the quantity of heat required to melt 4kg of ice and to raise the temperature of the water formed at 50°C if the Specific Latent Heat of Fusion of ice is 3.4×10^5J/Kg and Specific heat capacity of water is 4.2×10^3J/Kg/K
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answer; (d) spontaneous processes are characterized by the overall conversion of order to disorder;

the results is a decrease in air temperature with an increase of altitude.

explanation:

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wire in brush may conduct electricity from cell to drill and vice versa electrc shock possible