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    Working with heat exchange and specific heat

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    How much heat is released when 250.0g of copper is cooled from 100.0ºC to 20.5º? The specific heat of copper is 0.0921 cal/gºC.

    © BrainMass Inc. brainmass.com December 24, 2021, 4:53 pm ad1c9bdddf
    https://brainmass.com/chemistry/energetics-and-thermodynamics/working-heat-exchange-specific-heat-13539

    SOLUTION This solution is FREE courtesy of BrainMass!

    We have the formula for heat released as,

    q = m c (T2 - T1)

    where m is the mass, c is the specific heat capacity, T2 is the final temp and T1 is the initial temp.

    therefore q = 250*0.0921 * (20.5 - 100 ) = -1830.4875 Calories

    The negative sign implies that the heat is released.
    This is the required answer.

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

    © BrainMass Inc. brainmass.com December 24, 2021, 4:53 pm ad1c9bdddf>
    https://brainmass.com/chemistry/energetics-and-thermodynamics/working-heat-exchange-specific-heat-13539

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