How much energy is needed to raise the temperature of 3 kg of water by 10 °C? (Specific heat capacity of water = 4200 J/kg °C)
Answer and explanation
Correct answer: B. 126000 J
- Step 1: .
- Step 2: J.
Answer
126000 J.
Why not the others: 12600 J: it ignores the temperature rise. 42000 J: it ignores the mass. 126 J: it converts to kJ but keeps the unit J.
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