To help prevent frost damage, 4.20 kg of 0°C water is sprayed onto a fruit tree.
(a) How much heat will be released by the water as it freezes?
_______________ kcal
(b) How much would the temperature of the 200 kg tree decrease if it lost this amount of heat, given its specific heat is 0.800 kcal/kg·°C, and no phase change occurs?
________________°C