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What power is gained by a man when he eats 100 g ice in one minute ? Latent heat of fusion of ice is 80 cal/gm.

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`m=100g`
`t=60` second
Ice ate at each second `m.=m/t`
`=(100)/(60)`
`=(5)/(2)" Js"^(-1)`
Power gained by a man `P=m.L`
`=(5)/(3)xx80`
`=(400)/(3)"cals"^(-1)`
`=(400)/(3)xx4.2" Js"^(-1)`
`=400xx1.4=560W`
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KUMAR PRAKASHAN-THERMAL PROPERTIES OF MATTER-Section - C Objective Questions (VSQs)
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