Question
How much heat is required to raise 2 kg of a substance with specific heat 4200 J kg⁻¹ K⁻¹ by 5 K?
Select an option. Your answer will be checked instantly.
Correct Answer: B. 42000 J
Explanation:
q = mcΔT = 2×4200×5.
The required heat is 42000 J.
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