alleryA 0.2 kg liquid with c = 2000 J kg−1 K−1 cools by 5 K. Heat released?
A2000 J
B1000 J
C20 000 J
D200 J
Answer & Solution
Correct answer: A. 2000 J
The magnitude is mcΔT = 0.2 × 2000 × 5 = 2000 J.
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