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14 February, 20:52

How much energy is required to raise the temperature of 11.4 grams of gaseous helium from 24.2 °C to 38.3 °C?

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  1. 14 February, 22:10
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    Q = 835J

    Explanation:

    Specific heat capacity of Helium=5.193J/gk

    Q=msΔT

    ΔT=T2-T1

    Q=change in energy

    m=mass of substance

    S = Specific heat capacity

    Q = Change in energy

    T2 = 38.3 degrees Celsius = (38.3+273) k = 311.3k

    T1=24.2 degree Celsius = 24.2+273k

    T1=297.2k

    ΔT=T2-T1 = (311.3-297.2) k=14.1K

    Q = (11.4g) * (5.193J/gk) * (14.1k)

    Q=834.72282J

    Approximately, Q = 835J
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