A quantity of 30.1 cm3 of water at 22.4oc is placed in a freezer compartment and allowed to freeze to solid ice at -7.2oc. how many joules of energy must be withdrawn from the water by the refrigerator?
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Q=amt of heat
Q=m(specific heat(water)*change in temperature + latent heat of fusion(water-ice conversion) +specific heat* change in temperature )
=3150 calories
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