1.

The heat released by cooling one mole of copper from 400 K to room temperature (300 K) is (assume : C p of copper is 23 J K -1 mole -1 )

A. 2300 J
B. 4600 J
C. 230 J
D. 2.3 x 10 6 J
Answer» B. 4600 J


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