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    Entropy change: Water

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    5.2 Calculate the entropy change for each of the following:
    (a) 10g of steam at l00°C and a pressure of one atmosphere condensing into water at the same temperature and pressure. (The latent heat of vaporization of water is 22571 Jg^-1).
    (b) 10g of water at l00°C and a pressure of one atmosphere cooling to 0°C at the same pressure. (The average specific heat of water between 0°C and 100°C is 4.19 Jg^-1).
    (c) 10g of water at 0°C and a pressure of one atmosphere freezing into ice at the same pressure and temperature. (The latent heat of fusion of ioe is 3331 Jg^-1).

    © BrainMass Inc. brainmass.com October 4, 2022, 3:20 pm ad1c9bdddf
    https://brainmass.com/physics/specific-heat/entropy-change-water-528261

    SOLUTION This solution is FREE courtesy of BrainMass!

    ** Please see the attached file for the complete solution **

    We wish to compute the change of entropy for each of the following transitions:

    (a) 10 g of steam at and a pressure of one atmosphere condensing into water at the same temperature and pressure.
    (please see the attached file)

    We have:
    (please see the attached file)

    where (please see the attached file) is the latent heat of vaporization of water. Plugging in the values, we obtain:
    (please see the attached file)

    (b) 10 g of water at (please see the attached file) and a pressure of one atmosphere cooling to (please see the attached file) at the same pressure.

    Here we have:
    (please see the attached file)

    where c is the specific heat of water. Plugging in the values, we obtain:
    (please see the attached file)

    (c) 10 g of water at and a pressure of one atmosphere freezing into ice at the same pressure and temperature.

    Here we have:
    (please see the attached file)

    where (please see the attached file) is the heat of fusion of ice. Plugging in the values, we obtain:
    (please see the attached file)

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

    © BrainMass Inc. brainmass.com October 4, 2022, 3:20 pm ad1c9bdddf>
    https://brainmass.com/physics/specific-heat/entropy-change-water-528261

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