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16 August, 06:22

How many joules of energy are necessary to heat a sample of water with a mass of 46.0 grams from 0.0 to 100.0

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  1. 16 August, 06:34
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    Q = 19255.6 j

    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 water = 46 g

    change in temperature = ΔT = 100-0.0 = 100 °C

    Heat absorbed by water = ?

    Solution:

    Specific heat capacity of water = 4.186 j/g. °C

    Q = m. c. ΔT

    Q = 46 g*4.186 j/g. °C*100 °C

    Q = 19255.6 j
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