1.

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» <p>Total energy = 80*100</p><p>cal=80000*4.2 = 336KJ</p><p>Power=336/(5*60) = 112W</p>


Discussion

No Comment Found