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22. To help prevent frost damage, 4.00 kg of 0°C water is
sprayed onto a fruit tree.
(a) How much heat transfer occurs as the water freezes?
(b) How much would the temperature of the 200-kg tree
decrease if this amount of heat transferred from the
tree? Take the specific heat to be 3.35 kJ/kg .°C, and
assume that no phase change occurs.

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