Calculate the value of latent heat of fusion per unit volume if the thermal conductivities of solid and liquid are given as 15 and 20 kW/mK respectively and the temperature gradient of liquid and solid are given as 2K/m and 1.5K/m respectively? (Assume the rate of growth as 5m/s)

Calculate the value of latent heat of fusion per unit volume if the thermal conductivities of solid and liquid are given as 15 and 20 kW/mK respectively and the temperature gradient of liquid and solid are given as 2K/m and 1.5K/m respectively? (Assume the rate of growth as 5m/s) Correct Answer 0

Here when we balance the heat flow away from the interface through the solid and that from the liquid plus the latent heat generated at the interface we get the value of latent heat of fusion as 0 because when we substitute the respective values in the equation KsTs = Kl*Tl +v*L, we get KsTs = Kl*Tl, so hence L=0.
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