# Test2 - CE 561 Exam 2 This exam consists of four questions...

This preview shows pages 1–2. Sign up to view the full content.

CE 561, Exam 2, December 11, 2009 This exam consists of four questions, including three with multiple parts. You should be careful not to get stuck on one part. If you do not know how to do a problem, move on and return to it if you have time at the end. If you cannot find the numerical answer to a problem, explain how you would find the answer if you had more time. You may use three pages (2-sided) of hand-written notes and a scientific calculator. You should not have formulas pre-stored in your calculator. Carefully explain any assumptions you make, clearly indicate what part of what problem you are working on, and define the symbols that you use. The point value of each sub-part is indicated – budget your effort accordingly. There are 100 points total. Good luck. 1. The reversible, exothermic reaction A B, with rate = k 1 C A k 2 C B is to be carried out in solution in a well-mixed adiabatic batch reactor. At the start of each batch, the reactor contains 100 L of a solution of A at a concentration of 5 mol per liter ( C Ao = 5 mol/L, C Bo = 0) and a temperature of 300 K. Emptying, cleaning, and re-filling the reactor between batches requires 2 hours. The reactor contents have a density of 1 kg per liter and a specific heat of 4200 J/(kg K). The enthalpy of reaction is -42 kJ/mol. The

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern