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Question: 101 an adiabatic pot is used to cool and condense...

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10.1 An adiabatic pot is used to cool and condense 10 kg of hot ethanol
(150°C, 1.2 atm) by mixing it with cold ethanol (5°C, 1.2 atm). If the
fnal ethanol product is to be at 25°C and 1.2 atm, the heat capacity
of liquid and vapor ethanol is 112 and 65.6 J/mol °C. Boiling point of
ethanol is 78.3°C. The latent heat of vaporization of ethanol is 36,600
J/mol. How much cold ethanol (kg) must be added? (220 kg)

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