Physics - Heat & Thermo Question with Solution | TestHub

There is ice of thickness 20 cm on a tank. How long in minutes will it take for the layer to grow to 20.1 cm? The outside temperature is $-5^{\circ }$C, $K_{ice}=0.005$ cal $c{m}^{-1}$$s^{-1}$${}^{\circ }$$C^{-1}$, $L=80$ cal $g^{-1}$ and $\rho =0.91$ g $c{m}^{-3}$ (two decimals).