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1000 kg/h of a 50 wt% liquid mixture of ethanol and water at 20 C is...

1000 kg/h of a 50 wt% liquid mixture of ethanol and water at 20 C is fed continuously to a vessel in which the mixture is heated to 85 C. The liquid product is 30 wt% ethanol and the vapor product is 80 wt% ethanol.

a) Complete the material balance for this process.

b) Simplify the general energy balance for this process.

c) Calculate the amount of heat that is required. In your calculations, you may truncate the heat capacities from table B.2 to Cp = a + bT.

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