Practice Exam #1 with Solutions - Chemical Engineering Thermodynamics | CHE 344, Exams of Chemistry

Download Practice Exam #1 with Solutions - Chemical Engineering Thermodynamics | CHE 344 and more Exams Chemistry in PDF only on Docsity! 1 25 May 01 CHE 344 Hour Exam I: Practice Exam Open Book, Open Notes, Closed Neighbor 1. (35 points) One mole of an ideal gas, initially at 30oC and 1 bar, is changed to 10 bar by the following process: 1st Process Step: Reversible adiabatic compression to 5 bar 2nd Process Step: Reversible isothermal compression to 10 bar Calculate Q, W, and ∆U for each process step, and for the overall process. Use Cp = 3.5 R. 2. (20 points) Use the compressibility charts (attached) to estimate the density (kg/m3) of methyl chloride at 165oC and 55 bar of pressure. 3. (45 points) Hydrogen is produced by the reaction: CO (g) + H2O (g) ---> CO2 (g) + H2 (g) . The feed stream to the reactor is an equimolar mixture of CO and H2O vapor and enters the reactor at 125 oC and atmospheric pressure. If 60% of the H2O is converted and if the product stream exits the reactor at 425oC, how much heat must be transferred from the reactor per mole of feed? To save time, assume Cp(T) = A + BT, i.e., neglect the T 2 and T-2 terms of the tabulated Cp's.