A 2B
T= 450 K
P= 10 atm
Hr=1390 cal/gmol at 290 K
And G`= -56 cal/gmol
Heat capacity:
CpA= 20 cal/gmol/K
CpA= 12 cal/gmol/K
Fugacity coefficient:
A=0.97
B=0.49
R= 1.987 cal/gmol K
G = change in Gibbs
INTERNAL STUDENTS ONLY.
NAME: ........................................ .... .;.
THIS PAPER MUST
NOT BE REMOVED FROM
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THE UNIVERSITY OF QUEENSLAND
November 2003
CHEE-3005 Reactions Solutions Exam 2 Oct. 14 2014
Question1.
dN i
0 Fi ,in Fi ,out rV
i
dt
(a)Atsteadystate, 0 vCo vC kCV
C
Co
k
X
1 k
1 k
X
k
0.5
1 k
4 min
4k
0.5 8k 1 4k
1 4k
4k 1 k 0.25min 1
Solutions to Assignment 4
7.1
A batch reactor is to be designed for the second order reaction
A+BC+D
under the following conditions.
Initial charge: A and B each at a concentration of 25 gmole/lit.
Re
Question 5.1
From the units of the rate constant (hrs-1) we know that the reaction is 1st order. For a
CSTR with no change in the number of moles (A B) we can write the equations of
the concentration
If 2> 1, to maximize B, keep [A] low with inerts
CHEE3005 Reaction Engineering
Section 1
Reaction Order Summary
Sensitivity to temperature
Integrated Rate Laws,
,
except n=1,
Half Life,
Single React
Solutions to Assignment 3
A half order liquid phase reaction A
2B, occurs in a CSTR. Find the limits for the
conversion if the feed concentration is 1 mole/lit, residence time is 1 hr, and the rate
co
PROBLEMS
SET O
1. Introduction
1.1
The gas phase reaction, A 2B, is maintained at 450 K and 10 atm. The reaction
started with 1 kmol of pure A. The heat of reaction is Hr = 1390 cal/gmol at 290 K,
and
Problem 6.5
3 CSTRs are used to model a PFTR (correctly we assume):
When n=3 we get X=0.75 for this 1st order reaction when the TOTAL
residence time is :
What is X for the actual PFTR that is being mo
Solutions to Assignment 1
2.1
The gas phase reaction, A 2B, is maintained at 450 K and 10 atm. The reaction
started with 1 kmol of pure A. The heat of reaction is HR = 1390 cal/gmol at 290 K, and
Go =
ASSIGNMENT PROBLEMS
SET H
1. Introduction
1.1
Methanol is synthesized commercially from CO and H2 by the reaction
CO 2H 2 CH 3 OH
over a Cu/ZnO catalyst at ~350 oC at 50-100 atm. The standard state th
PROBLEMS
SET O
2.
Thermodynamics of Chemical Reactions
2.1
The gas phase reaction, A 2B, is maintained at 450 K and 10 atm. The reaction
started with 1 kmol of pure A. The heat of reaction is Hr = 139
Solutions to Assignment 2
The first order reaction A B is conducted in a batch reactor at 500K. The rate
constant is given by k = 4.852108e-10,000/T [hr-1]. Here T is the temperature in oK.
After 15 m
PROBLEMS
SET E
2.
Thermodynamics of Chemical Reactions
2.1
Methanol is synthesized commercially from CO and H2 by the reaction
CO 2H 2 CH 3 OH
over a Cu/ZnO catalyst at ~350oC at 50-100 atm.
The stand
CHEE 3005 QUIZ 2 Solutions
October 14, 2016
Maximum marks: 50
Q1. The reaction, A(g) + B(g) P(g), catalyzed by a porous catalyst, is irreversible. The
reaction follows the following mechanism (where s
CHEE3005 2012 MidSemester Exam 1
10 minute perusal (no writing). 90 minute duration. Please complete in answer book.
Exam is worth 15% of nal grade, has 3 big questions in total and is marked out of 1
Question 1
a) Liquid phase reaction.
Assume: - Isothermal - Elementary reactions - Stationary state for C
Start with the rate equation for D:
r1) = k3CC _ k4CACD
C is an intermediate product so we wan
CHEE3005 2010 Mid-Semester Exam 1
5 minute perusal (no writing). 90 minute duration. Please complete in answer book.
Exam is worth 15% of nal grade, has 3 questions in total and is marked out of l 00.
1
Solutions to Assignment 5
Q 8.3) A first order heterogeneous irreversible reaction is taking place within a
spherical catalyst pellet. The reactant concentration half way between the
surface and cen
Aug 12, 13, 2015
Tutorial Sheet 3: Solution
Question 1
Let us consider the kinetics of beer making. This involves fermentation of a
carbohydrate using an enzyme - a high molecular weight (MW > 10,000)
Problem Set H
Question 1.1
a) CO 2 H 2 CH 3 OH
Assume ideal gas, let A=CO, B=H2, C=CH3OH
yc
P
K eq
( t ) 2 But Pt=1atm
2
y A y B 1atm
yc
K eq
y A y B2
K eq e G
o
/ RT
e 24.210
3
/(8.314298)
A
1
1
CHEE 3005 QUIZ 1A
August 22, 2017
Maximum marks: 100
INSTRUCTIONS
Reading Time: 5 min. Working time: 50 min.
No writing during reading time.
Only one A4 page with anything written on it on one side on
October3&5,2017
CHEE3005TutorialSheet8
Question 1
A new batch of a certain catalyst was measured to have a pore volume of 0.6
cm3/g with pore radius of 40 . A first order reaction AB, when conducted a
Question 2.
A first order liquid phase reaction A B conducted in a constant pressure plug flow reactor
at 400 K gave a conversion of 0.7. The same conversion was also achieved in a constant
pressure C
October3&5,2017
CHEE3005TutorialSheet8
Question 1
A new batch of a certain catalyst was measured to have a pore volume of 0.6
cm3/g with pore radius of 40 . A first order reaction AB, when conducted a
September1921,2017
CHEE3005TutorialSheet7
Question 1
A CSTR is used to carry out the first order aqueous reaction AB, with CAo=8
moles/lit., To = 300 K, Cp = 1000 cal/lit-K, k = 109e-6000/T min-1, HR