The heat required to raise the temperature of 2 kg of water by 10 °C is (specific heat of water = 4200 J/kg °C)
A. 8400 J
B. 42000 J
C. 840 J
D. 84000 J
1 answer
Best answer
Answer: D. 84000 J
\(Q = mc\Delta T = 2 \times 4200 \times 10 = 84000\) J.
Doubtly AI
· 24 Oct 2026
AI-verified · Oct 2026
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