1. (20 pts) The temperature in a heated reactor is given by the following expression
135 0.012 t
T 26.5
e
q
where
T = temperature, oC
q = volume flow rate of entering liquid, m3/h
t = time, s
a) What are the units of 26.5, 135, and 0.012? (10 points)
Dim

Quiz #1
1.
Convert 2.55
lbm
kg
to 2
2
ft s
m s
Correct answer: 0.522
2.
lbm
ft 2 s
The equation
t = 16.5 2.25 L-1/2
describes the amount of time it takes for the liquid in a tank to reach a certain level as it is
draining. In the equation, t is the time i

Solution Outline for Problem 7.24
Part (a) the steam is heated at constant pressure from 100oC and 1 atm to 400oC and 1 atm. How
do we know? Satd. steam means at its vapor pressure thus the input steam is at 1 atm (its vapor
pressure at 100oC). Since it i

Quiz #2
1.
The specific gravity of pure nitric acid is 1.495230/4
(a)
Using the specific gravity, determine the density of nitric acid in g/cm3 and in lbm/ft3
1.4952 g/cm3 and 93.3 l lbm/ft3
(b)
At what temperature does your answer to part (a) apply? 30oC

Solution outline for Problem 2.36
Start by rewriting equation as P = C/Vk or P = CV-k. Use a log-log plot with the power law.
Excel plot and power law trend line are shown. Answer: k = 1.573, C = 3.40x105
mmHg.cm4.719 or mmHg.(cm3)1.573
Problem 2.36
10000

Solution outline for Problem 3.6(a)
Again, I expressed densities in kg/L which are numerically the same as g/cm3 thus they are
numerically the same as the specific gravity from the appendix.
195.5 kg H 2 SO4
kg mix
L mix
445 L mix
0.35 kg H 2 SO4 1.2563 k

Solution outline for Problem 2.7
Note that the annual production rate needs to be somehow expressed in the dimensional
equation. I did it by beginning with metric tons of crude per year. MT = metric tons
4.02 x10 9 MT crude
plane h
1 MT ker 220.83 imp gal

Solution outline for Problem 4.7
b) Balance on water gives m R = 356 g/min. Balance on acetic acid using the value of m R
= 356 g/min gives m E = 461 g/min. A balance on total mass using the previously found
values of m R and m E gives mC = 417 g/min.
c)