Problem Set 2 - 1 b. What is the final pressure in the...

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Chemical Engineering 140 September 2, 2009 Problem Set #2 6. 5. 2.34 FR. In addition to parts (a) and (b), please be sure to answer part (c) below. 2.34. A chemical reaction A B is carried out in a closed vessel. The following data are taken for the concentration of A, C A (g/L), as a function of time, t (min), from the start of the reaction: c) What is the reaction-rate expression in a batch stirred tank reactor? 7 . Given on a previous midterm An incompressible, nonvolatile liquid is pumped into the bottom of a closed tank of volume V o and diameter D . At the start of filling, the tank contains only an inert, ideal gas, such as air, that is insoluble in the liquid. The initial pressure in the tank is p o , and the supply liquid volumetric flow rate is proportional to the difference in the inlet line pressure, p in and the pressure in the tank, p (which is constant throughout the tank). The process is isothermal. a. Draw a sketch of the filling process and describe in words what happens.
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Unformatted text preview: 1 b. What is the final pressure in the tank? c. Perform a mass balance on the gas phase to establish the transient pressure in the tank as a function of the liquid volume. d. What is the liquid height in the tank at the final pressure? e. Perform a mass balance on the liquid to derive an implicit expression for the liquid height in the tank as a function of time in terms of the parameters p o , p in , V o , and D . 8. 32.7 ( NB: Chapter 32 is in the supplied CD). 9. 32.13 10. In one paragraph, explain how the MEA CO 2 stack-gas separation process works. Be sure to point out why two columns are needed. Why is the first column called the absorber column and the second column (from left to right) is called the stripper column? What is the purpose of heat exchanger at the entrance to the stripper column? 2...
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This note was uploaded on 03/17/2010 for the course CHEM ENG ?? taught by Professor Claytonradke during the Fall '09 term at University of California, Berkeley.

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Problem Set 2 - 1 b. What is the final pressure in the...

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