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    997811079's Avatar
    997811079 Posts: 1, Reputation: 1
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    #1

    Nov 5, 2009, 04:04 PM
    changes of state
    how much heat is released in the conversion of 1.00 L of steam at 21.9 atm and 200 C(temperature) to ice at -6C(temperature) and 1 atm?

    Given:
    enthalpy of fusion(H2O)=6.01kJ/mol
    enthalpy of vaporization(H2O)=40.66kJ/mol
    Cp(s)(crystalline H2O)=38.02J(K*mol)
    Cp(l)(liquid H2O)=75.35J/k*mol
    Cp(g)(H2O gas)=33.60J/K*mol
    Perito's Avatar
    Perito Posts: 3,139, Reputation: 150
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    #2

    Nov 6, 2009, 06:29 AM

    Start by converting liters of steam to moles of steam.
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