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19 May, 04:09

If the specific heat of copper is 0.711 J/g•°C, how much copper would it take if the heat given off is 54.85 calories and the temperature change is 205°C.

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  1. 19 May, 04:35
    0
    m = 1574.02 g

    Explanation:

    Given dа ta:

    Specific heat capacity of copper = 0.711 j/g.°C

    Mass of copper = ?

    Calories given off = 54.85 Cal (54.85 * 4184 = 229492.4 j)

    Temperature changes = 205°C

    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

    Q = m. c. ΔT

    m = Q / c.ΔT

    m = 229492.4 j / 0.711 j/g.°C. 205°C

    m = 229492.4 j / 145.8 j/g

    m = 1574.02 g
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