Which of the following is an endothermic process for the system? In each case, the "system" is underlined.
A) a block of cheese being cooled in a refrigerator
B) a hot pack being used to warm a sore muscle
C) a heat pump being used to warm a house
D) a candle burning at a dinner table
E) ice cubes freezing in the refrigerator
Correct Answer:
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