Physics - Heat & Thermo Question with Solution | TestHub

A slab of stone of area 0.34 $m^2$ and thickness 10 cm is exposed on the lower face to steam at $100^{\circ }$C. A block of ice at $0^{\circ }$C rests on the upper face of the slab. In one hour, 3.6 kg of ice is melted. Assume that the rate of heat flow through the sides is negligible. The latent heat of fusion of ice is $3.4\times 10^4$ J $k{g}^{-1}$. What is the thermal conductivity of the stone in J $s^{-1}$$m^{-1}$ ${}^{\circ }$$C^{-1}$?