____ base material was used in the past for applications in which performance was not critical because it was inexpensive.
A. Epoxy fiberglass
B. Phenolic
C. Ceramic
D. Teflon
Answer: B
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Each foot of duct offers a known resistance to airflow which is called ____________________.
Fill in the blank(s) with the appropriate word(s).
The gas phase reaction A + B ? C is carried out in a continuous, steady state reactor. Which of the following is NOT a valid way to increase the fraction of A and B that are converted to C at equilibrium?
A. Increase the pressure. B. Change the temperature such that the equilibrium constant of the reaction is higher. C. Add a catalyst to the reactor that will accelerate the reaction. D. Add a solvent to the reactor, in which C is highly soluble and A and B are slightly soluble. E. All of the above are valid.