# T xy diagram for ethanol and chloroform Problem Statement: A feed solution containing a mixture of..

T xy diagram for ethanol and chloroform Problem Statement: A feed solution containing a mixture of 70% ethanol and 30% chloroform at 42?C is sent to a partial reboiler. The reboiler is operated at 69.6?C. The feed rate is 100 mols/hour Question 1: What phase is the feed? A) Saturated Liquid B) Saturated Vapor C) Subcooled Liquid D) Superheated Vapor E) Sat?d Vapor plus Sat?d Liquid Question 2: What is the composition of ethanol in the vapor (y EtOH ) and liquid (x EtOH ) streams? A) y EtOH = 0.6 , x EtOH = 0.8 B) y EtOH = 0.8 , x EtOH = 0.6 C) y EtOH = 0.6 , x EtOH = 0.6 D) y EtOH = 0.8 , x

T xy diagram for ethanol and chloroform Problem Statement: A feed solution containing a mixture of 70% ethanol and 30% chloroform at 42?C is sent to a partial reboiler. The reboiler is operated at 69.6?C. The feed rate is 100 mols/hour Question 1: What phase is the feed? A) Saturated Liquid B) Saturated Vapor C) Subcooled Liquid D) Superheated Vapor E) Sat?d Vapor plus Sat?d Liquid Question 2: What is the composition of ethanol in the vapor (y EtOH ) and liquid (x EtOH ) streams? A) y EtOH = 0.6 , x EtOH = 0.8 B) y EtOH = 0.8 , x EtOH = 0.6 C) y EtOH = 0.6 , x EtOH = 0.6 D) y EtOH = 0.8 , x EtOH = 0.8 Question 3: Calculate the flow rate of the vapor (V) and liquid streams (L). Question 4: Calculate an equation for the amount of heat sent to the reboiler (Q R ): Question 5: If we picked 25?C as a reference temperature, what would the equation for the enthalpy of the vapor stream be? (Hint: Pick a thermodynamic pathway from the reference temperature and add up the sensible heats = Cp*?T and latent heat = ?) Question 5: What type of solution is ethanol chloroform?

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