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02: 12+2- 4 Marks a) What energy would be required to boil 4 Litres of water kept at 25° C. Given, that the water is being boiled by a heater which has a power of 3KW b) How much time would the heater require to boil this water?
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Answer #1

Concept used:- here we use the formula for heat energy required to raise the temperature of water and use the relation between power, energy and time,

To boil temperatn has to Teachn 100 c So 100 C-25°c 75c = AT= E = Pt***************************************************************************************************
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