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19 February, 10:18

The specific heat capacity of lead is 0.13 J/g oC. How much heat (in J) is required to raise the temperature of 13.5 g of lead from 27.6°C to 38°C? Keep three significant figures in your answer.

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  1. 19 February, 11:29
    0
    18.3 J

    Explanation:

    Heat required to raise the temperature of copper from 27.6°C to 38°C is given by

    Q = mCΔT

    m = mass of Copper = 13.5 g

    C = Specific heat capacity of Copper = 0.13 J/g.°C

    ΔT = change in temperature of Copper = 38 - 27.6 = 10.4°C

    Heat = 13.5 * 0.13 * 10.4 = 18.25 J = 18.3 J to 3s. f
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