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At what rate a layer of ice will be form...

At what rate a layer of ice will be formed if the surrounding temperature is at `-10^(@)C` ? Thermal conductivity of ice`=1.6Wm^(-1)K^(-1)`. Initial thickness of ice is 1mm

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`Q=(KA(theta_1-theta_2)dt)/(d)=mL=(rho.A.dx)L`
i.e `(dx)/(dt)=(K(theta_1-theta_2)/(rhoLd))=(1.6xx(0-(-10)))/(10^3xx3.36xx10^5xx10^(-3))=4.762xx10^(-5)ms^(-1)`
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