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10 August, 08:47

Calculate the amount of heat (in kj) required to raise the temperature of a 88.0 g sample of ethanol from 298.0 k to 405.0 k. the specific heat capacity of ethanol is 2.42 j/g⋅∘c.

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  1. 10 August, 09:10
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    Given:

    Mass of ethanol m = 88 g

    Initial temperature T1 = 298 K = (298-273) C = 25 C

    Final temperature, T2 = 405 K = (405-273) = 132 C

    heat capacity of ethanol, c = 2.42 J/g C

    To determine:

    The heat required to raise the temperature of ethanol

    Explanation:

    the heat (Q) required is given as:

    Q = mcΔT = mc (T2-T1)

    Q = 88.0 g * 2.42 J/gC * (132-25) C = 22786 J

    Ans: Heat required = 22.79 kJ
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