Page 297 - Elements of Chemical Reaction Engineering 3rd Edition

Chap. 5 Questions and Problems 269
from the parameter values chosen. For N experimental runs and K
parameters to be determined,
N
[ ri (measured) - rr (~alculated)]~
ok= 2 (S5-5)
N - K
1=1
6. Experimental planning (from CD-ROM)
a. Why?
b. Wit,hin what limits?
c. Are you choosing the correct parameters?
d. Standards!
e. Can you do it again?
f. Be careful: you can lie with statistics.
g. We don’t believe an experiment until it’s proved by theory.
h. Milk youi. data for all its inforrnation.
i. Tell the world!

Review Figure 5-13.

QUESTIONS AND PROBLEMS

The subscript to each of the problem numbers indicates the level of difficulty: A, least
difficult; D, most difficult.

In each of the questions and problems below, rather than just drawing a box
around your answer, write a sentence or two describing how you solved the problem,
the assumptions you made, the reasonableness of your answer, what you learned, and
apy other facts that you want to include. You may wish to refer to W. Strunk and E. B.
White, The Elements of Style (New York Macmillian, 1979), and Joseph M. Williiams,
Style: Ten Lessons in Clarity & Grace (Glenview, 111.: Scott, Foresman, 1989) to
enhance the quality of your sentences.

P5-lA (a) Compare Table 5-4 on laboratory reactors with a similar table on page
269 of Bisio and Kabel (see Supplementary Reading, listing 4). What are
the similarities and differences?
(b) Which of the ICMs for Chapters 4 and 5 was the most fun?
(c) Chwse a FAQ from Chapters 4 and 5 and say why it was the most helpful.
(d) Listen to the audios on the CD and pick one and say why it could
be eliminated.
(e) Create an original problem based on Chapter 5 material.
(0 Design an experiment for the undergraduate laboratory that demonstrates
the principles of chemical reaction engineering and will cost less than
$500 in purchased parts to build. (1998 AIChE National Student Chapter
Conpetition) Rules are provided on the CD-ROM.
(8) Plant a number of seeds in different pots (corn works well). The plant
and soil of each pot will be subjected to different conditions, Measure the
height of the plant as a function of time and fertilizer concentration.
Other variables might include lighting, pH, and room temperature.