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81. A boychews 100 g of ice in 5 minute. If latent heat of ice is80 cal/sec, his power is:(a) 56 W(b) 28 W(d) 224 W(c) 112 W

Answer»

Total energy = 80*100

cal=80000*4.2 = 336KJ

Power=336/(5*60) = 112W



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