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spent steam from an electric generating plant leaves the turbines at 120.0 C and is cooled to 90. 0 C liquid water by water from a cooling tower in a heat exchanger. How much heat is removed by the cooling tower water for each kg of spent steam?

  • science -

    Specific heat of water: 4.187 kJ/kg-K
    Specific heat of steam: 1.996 kJ/-kgK
    Heat of vaporization = 540 kcal/kg

    heat removed per kg: 20*1.996 + 10*4.187 + 540 = 622 kcal/kg

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