How many joules of heat transfer are required to thaw a 0877

How many joules of heat transfer are required to thaw a 0.877-kg package of frozen vegetable juice originally at 0°C if its latent heat of fusion is the same as that of water (334 kJ/kg)?

Solution

For a given latent heat of fusion, the net energy transfer required to thaw is given as mass x latent heat of fusion

Therefore in the situation mentioned, we have: Heat = 0.877 x 334 x 10^3= 2.929 x 10^5 Joules