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A solid metal weighing 150 g melts at it...

A solid metal weighing 150 g melts at its melting point of `800^(@)C` by providing heat at the rate of 100 W. The time taken for it to completely melt at the same temperature is 4 min. What is the specific latent heat of fusion of the metal ?

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`1.6xx10^5` J `kg^(-1)`
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