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8 December, 23:54

The specific heat of copper is 0.42J/g°C. How much energy is required to heat a 275g sample of copper from 25.2°C to 75.8°C?

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  1. 9 December, 00:18
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    Q = 5844.3 j

    Explanation:

    Given dа ta:

    Specific heat of copper = 0.42 j/g.°C

    Mass of sample = 275 g

    Initial temperature = 25.2°C

    Final temperature = 75.8°C

    Energy required = ?

    Solution:

    Formula:

    Q = m. c. ΔT

    Q = amount of heat absorbed or released

    m = mass of given substance

    c = specific heat capacity of substance

    ΔT = change in temperature

    ΔT = 75.8°C - 25.2°C

    ΔT = 50.6°C

    Q = 275 g * 0.42 j/g.°C * 50.6°C

    Q = 5844.3 j
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