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    Heat Absorption and Temperature Rise

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    What mass of water rises by 15 degrees Celsius when it absorbs 2646 Joules?

    © BrainMass Inc. brainmass.com December 24, 2021, 4:44 pm ad1c9bdddf
    https://brainmass.com/chemistry/energetics-and-thermodynamics/heat-absorption-temperature-rise-4602

    SOLUTION This solution is FREE courtesy of BrainMass!

    Heat gained by a substance = mass x specific heat capacity x rise in temperature

    or, dQ = m C dT

    Here we need the specific heat capacity of water to solve this problem. From standard tables the specific heat of water is
    4200 J/Kg K

    Converting the temperature rise in the problem to Kelvin scale,
    Temperature rise = 15 + 273 = 283 K

    The mass of water is thus, m = dQ/(C dT)

    = 2646/(4200 x 283)
    = 0.0022 Kg

    Answer is 2.2 mg

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    © BrainMass Inc. brainmass.com December 24, 2021, 4:44 pm ad1c9bdddf>
    https://brainmass.com/chemistry/energetics-and-thermodynamics/heat-absorption-temperature-rise-4602

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