CuriousTab
Search
CuriousTab
Home
Aptitude
Computer
C Programming
C# Programming
C++ Programming
Database
Java Programming
Networking
Engineering
Biochemical Engineering
Biochemistry
Biotechnology
Chemical Engineering
Civil Engineering
Computer Science
Digital Electronics
Electrical Engineering
Electronics
Electronics and Communication Engineering
Mechanical Engineering
Microbiology
Technical Drawing
GK
Current Affairs
General Knowledge
Reasoning
Data Interpretation
Logical Reasoning
Non Verbal Reasoning
Verbal Ability
Verbal Reasoning
Exams
AIEEE
Bank Exams
CAT
GATE
IIT JEE
TOEFL
Jobs
Analyst
Bank PO
Database Administrator
IT Trainer
Network Engineer
Project Manager
Software Architect
Discussion
Home
‣
Chemical Engineering
‣
Chemical Reaction Engineering
Comments
Question
If the time required to complete a definite fraction of reaction varies inversely as the concentration of the reactants, then the order of reaction is
Options
A. 0
B. 1
C. 2
D. 3
Correct Answer
2
Chemical Reaction Engineering problems
Search Results
1. The dimensions of rate constant for reaction 3
A
→
B
are (l/gm mole)/min. Therefore the reaction order is
Options
A. 0
B. 1
C. 2
D. 3
Show Answer
Scratch Pad
Discuss
Correct Answer: 2
2. A batch reactor is suitable for
Options
A. achieving cent percent conversion of reactants into products.
B. large scale gaseous phase reactions.
C. liquid phase reactions.
D. obtaining uniform polymerisation products in highly exothermic reactions.
Show Answer
Scratch Pad
Discuss
Correct Answer: liquid phase reactions.
3. With decrease in temperature, the equilibrium conversion of a reversible endother-mic reaction
Options
A. decreases
B. increases
C. remains unaffected
D. increases linearly with temperature
Show Answer
Scratch Pad
Discuss
Correct Answer: decreases
4. The rate constant of a chemical reaction increases by 100 times when the temperature is increased from 400 °K to 500 °K. Assuming transition state theory is valid, the value of E/R is
Options
A. 8987°K
B. 9210°K
C. 8764°K
D. 8621°K
Show Answer
Scratch Pad
Discuss
Correct Answer: 9210°K
5. Pick out the correct statement.
Options
A. In catalytic reactions, the catalyst reacts with the reactants.
B. A catalyst initiates a chemical reaction.
C. A catalyst lowers the activation energy of the reacting molecules.
D. A catalyst can not be recovered chemi cally unchanged at the end of the chemical reaction.
Show Answer
Scratch Pad
Discuss
Correct Answer: A catalyst lowers the activation energy of the reacting molecules.
6. The reason why a catalyst increases the rate of reaction is that, it
Options
A. decreases the energy barrier for reaction.
B. increases the activation energy.
C. decreases the molecular collision diameter.
D. none of these.
Show Answer
Scratch Pad
Discuss
Correct Answer: decreases the energy barrier for reaction.
7. For a zero order chemical reaction, the
Options
A. half life period is directly proportion to the initial concentration of the reac-tants.
B. plot of products concentration with time is a straight line through the origin.
C. products concentration increases linerarly with time.
D. all (a), (b) and (c).
Show Answer
Scratch Pad
Discuss
Correct Answer: all (a), (b) and (c).
8. A catalyst loses its activity due to
Options
A. loss in surface area of the active component.
B. agglomeration of metal particles caused by thermal sintering of the solid surface.
C. covering of the catalytic active sites by a foregin substance.
D. all (a), (b) and (c).
Show Answer
Scratch Pad
Discuss
Correct Answer: all (a), (b) and (c).
9. For an isothermal variable volume batch reactor, the following relation is applicable for a first order irreversible reaction.
Options
A.
X
A
=
k
.
t
B.
C. -ln(1 -
X
A
) =
kt
D. ?
A
. ln (1 -
X
A
) =
k
.
t
Show Answer
Scratch Pad
Discuss
Correct Answer:
10. Radioactive decay follows __________ order kinetics.
Options
A. first
B. second
C. third
D. zero.
Show Answer
Scratch Pad
Discuss
Correct Answer: first
Comments
There are no comments.
Enter a new Comment
Save
More in Chemical Engineering:
Chemical Engineering Basics
Chemical Engineering Plant Economics
Chemical Engineering Thermodynamics
Chemical Process
Chemical Reaction Engineering
Environmental Engineering
Fertiliser Technology
Fluid Mechanics
Fuels and Combustion
Furnace Technology
Heat Transfer
Mass Transfer
Materials and Construction
Mechanical Operations
Nuclear Power Engineering
Petroleum Refinery Engineering
Polymer Technology
Process Control and Instrumentation
Process Equipment and Plant Design
Refractory Technology
Stoichiometry