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Unformatted text preview: CHEE 3334 Fall 2000 Michael Nikolaou FINAL EXAM Open-book, open-notes. Total points 100. Please, budget your time ! Do NOT try to read the textbook during the exam! Write neatly! Do NOT use your programmable calculator to find results you are asked to compute in a certain way--after all, the calculator may find the wrong answer or not all answers! Show all work. Return this sheet with your exam . GOOD LUCK! (20 pts.) 1. Use the set of data given below to find the best possible values and 95% confidence bounds for the virial coefficients A 1 and A 2 for the equation of state 1 2 2 1 PV A A RT V V = + + .( mlatm gmolK 82.05 R = ) P (atm) T (K) V (ml) 0.969 298 25000 1.090 298 22200 1.341 298 18000 1.606 298 15000 (20 pts.) 2. A chemical engineer has designed a new transdermal patch to deliver insulin through the skin to diabetic patients in a controlled way, eliminating the need for painful injections. She collected data on the mass flux ( 1 dm A dt , A is cross-flow area, m is mass of insulin) of insulin being delivered through the patch and skin as a function of time. The data are shown in the table below. Using numerical integration, provide an estimate for the total amount of insulin delivered through the skin in 24 hours if a patch of area 2 10cm A = was used. Mass Flux, 1 dm A dt ( 2 mg cm hr ) Time (hr) 15 14 1 12 2 11 3 9 4 8 5 5 10 2.5 15 2 20 1 24 (30 pts.) 3. The transient behavior of a non-isothermal batch reactor is described by the following differential equations. 10 ( ) 273 ( )e T t dC C t dt- + = - 10 ( ) 273 1000 ( )e 10( ( ) 20) T t dT C t T t dt- + =-- where C is the concentration of the reactant and T is the temperature of the reactor. is the temperature of the reactor....
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This note was uploaded on 04/15/2008 for the course CHEE 3334 taught by Professor Nikolau during the Fall '06 term at University of Houston.
- Fall '06