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4 July, 20:18

Calculate the specific heat of a metallic element if 50.0 g of the metal need 314 joules of heat energy to raise

the temperature from 25°C to 50°C.

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  1. 4 July, 20:25
    0
    c = 0.25 j/g.°C

    Explanation:

    Specific heat capacity:

    It is the amount of heat required to raise the temperature of one gram of substance by one degree.

    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

    Given dа ta:

    Mass of metal = 50.0 g

    Heat needed = 314 j

    Initial temperature = 25°C

    Final temperature = 50 °C

    Specific heat = ?

    Solution:

    ΔT = 50 °C - 25°C = 25°C

    Q = m. c. ΔT

    c = Q / m. ΔT

    c = 314 j / 50.0 g. 25°C

    c = 314 j / 1250 g. °C

    c = 0.25 j/g.°C
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