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14 August, 10:51

How much heat is needed to raise the temperature of 75 g of a substance by 15 C when the specific heat is 0.92 J/g-C?

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  1. 14 August, 14:17
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    Answer is: 1035 joules of heat is needed.

    m (substance) = 75 g.

    ΔT (substance) = 15°C.

    cp (substance) = 0,92 J/g°C.

    Q = m (substance) · ΔT (substance) · cp (substance).

    Q = 75 g · 15°C · 0,92 J/g°C.

    Q = 1035 J = 1,035 kJ.
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