Question

An aluminium kettle of mass 2kg holds 2.00×10^3cm of water and consume electric power at the rate of 2kw. If 60% of the heat supplied is wasted, find the time taken to bring the kettle of water to boiling point from an initial temperature of 25°c.(specific heat capacity of water and aluminiun are 4.18 and 0.84j/g-1 °c)

Answer 1

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Answer 2

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