An ammonia solution at a high pressure is flash-vaporized at a rate of 200 Ibmlh. The solution contains 0.70 Ibm NH3/lbm , and its enthalpy relative to H20(l, 32F) and NH3(1, -40F) is -50 Btwlbm. Liquid and gas streams emerge from the unit at 1 atm and 80F. Use Figure 8.5-2 to determine the mass flow rates and ammonia mass fractions of the vapor and the liquid product streams and the rate (Btu/h) at which heat must be transferred to the vaporizer. (See Example 8.5-4.)

Mass Communication in Society Umberger 100 Steve Smethers MWF 11:30am – 12:20pm Professor: Steve Smethers smethers@ksu.edu (785) 532-5286 Kedzie Hall 401: 2pm – 5pm Facebook: Dr. Steven Smethers --> “virtual office hours” TA: Josh Tests: every 4 weeks Quizzes: there will be an online quiz posted on K-State Online a week before the exam 4 online quizzes, 4 exams look over notes every night fourth exposure to material is key Quiz Information: Online quizzes go live Wednesday 12:30pm to midnight Thursday 10 questions, 20 points, 30 minutes open book and open note (questions are reused for the test) Supplemental Instruction: Tuesdays and Thursday 7pm – 8:30