Environmental civil Question 1-4: Circle the correct answer (8 points) How do de
ID: 1765443 • Letter: E
Question
Environmental civil Question 1-4: Circle the correct answer (8 points) How do dead zones affect the detention time of a CFSTR? a. Increase b. Decrease c. No change 1. 2. What are the two main assumptions which define an ideal CFSTR? I. Always unsteady state II. Always in steady state III. Partial dispersion of fluid particles at any given time IV. Complete dispersion of fluid particles throughout the reactor b. I & IV d. Il & IV 3. The term that describes the change in the concentration of a reactant divided by the change in time of the reaction is a. Rate constant b. Average reaction rate c. Reaction rate d. Order of the reaction 4. Which of the following statement is true? a. BOD measures pollution potential of decomposable organic matter b. TOC does not measure oxygen equivalence c. Both COD&TOC; can be related to BOL d. All of the above
Explanation / Answer
Answer 1- (b)- Decrese
Answer 2- (d)- II & IV
Answer 3- (c)- Reaction rate
Answer 4- (d)- All of above
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