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View Window Help CHG2317 Mock Final Exam-2.pdf - 4 Adobe Acrobat Reader DC Tools CHG2317 Mock Fin. CHG2317 Decemb Answers (1).pdf O 125% 3. A gas...

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ViewWindowHelpCHG2317 Mock Final Exam-2.pdf - 4Adobe Acrobat Reader DCToolsCHG2317 Mock Fin...CHG2317 DecembAnswers (1).pdfO125%3. A gas stream containing n-hexane and methane at 60 *C and 1.2 atm is supplied to a condenser. The dewpoint temperature of the gas mixture entering the condenser is 55 *C; and methane is considered to benon-condensable. The gas is cooled to 5 *C in the condenser, thus recovering pure liquid n-hexane. The gasstream leaving the condenser saturated in n-hexane at 5 *C and 1.1 atm, is fed to a combustion chamber ata flow rate of 207.4 L/s, where is it burned with 100 % excess air. The air enters the combustion chamberat a temperature of 200 *C. The combustion gases exit at 400 *C and 1 atm and does not contain anycarbon monoxide or unburned hydrocarbons. The heat produced from the combustion is used to generatesaturated steam at 10 bar from liquid water at 25 *C. The process flow diagram is presented in Figure 1below.a) Calculate the mole fraction of n-hexane in the gas stream entering and exiting the condenser.b) Calculate the rate of condensation of n-hexane ( Liters of condensate per second).c) Calculate the rate of heat drawn from the condenser (kW).d) Calculate the steam generation rate in the combustion chamber (kg/s).CH.(g)+20,(g) -> 2002 (g) +2H, O(v) :AH. =-802.3 1hJ / molCoH, (v) +9.502(g) -> 6CO, (g) +7H,O(v): AH" =-3886.6kJ / mol
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