One side of an iron plate one metre square is kept at 100°C and the other side is at 0°C. The thickness of the plate is 1 cm. If all the heat conducted across the plate in one minute is used in melting ice, calculate the amount of ice so melted. Thermal conductivity of iron = 0.162 in C.G.S. unit L.H. of fusion of ice = 80 cal/gm.

One side of an iron plate one metre square is kept at 100°C and the o

1.	One side of an iron plate one metre square is kept at 100°C and the other side is at 0°C. The thickness of the plate is 1 cm. If all the heat conducted across the plate in one minute is used in melting ice, calculate the amount of ice so melted. Thermal conductivity of iron = 0.162 in C.G.S. unit L.H. of fusion of ice = 80 cal/gm.
Answer» SOLUTION :`m = KA ( theta_1 - theta_2) t// Lx = (0.162 xx 4.2 xx 10^(2) ) xx 1 xx (100) xx 60//336 xx 10^(3)xx0.1 = 121.5 "kg"`