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A supply of 50 kg of chicken at 6degC contained in a box is to be frozen to
-18degC in a freezer. Determine the amount of heat that needs to be removed.
The latent heat of chicken is 247 kJ/kg and its specific heat is 3.32 kJ/kg-degC
above freezing and 1.77 kJ/kg-degC below freezing. The freezing temperature of
the chicken is -2.8degC
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