Question Bank for Chemical Reaction Engineering (12206)

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Question Bank for Chemical Reaction Engineering (12206)

Ch
apter
: 1
T
hermodynamic

1.
What is thermodynamic
?
Explain scope of it in
Chemical Engineering
?

2. What

is
chemical

reaction
egg
?

3. Define I) System II) Surrounding, with

one example of
each
.

4. What

is intensive
property?

Give
two
example
.

5. What

is in
ternal
energy
?

6.
State
zero
th
law of thermodynamics?

7. What is enthalpy? State its importance
.

8. Write combined statement of 1
st

& 2
nd

law of thermodynamic.

9. What do you mean by thermodynamic equilibrium?

10. Give the statement of

1
st

,

2
nd

& 3
rd

law

of thermodynamic. Write mathematical

statement & state


significance of each

law.

11. Derive relation for entropy change in case of ideal gas
.

12. Distinguish between

reversible & irreversible
processes.

13. Define the term entropy
. Justify the sta
tement entropy is measure of disorderness or randomness of


system.

14. State the 3
rd

law of thermodynamic & it’s important
.

15. Derive

the general expression in terms of initial and final
temperature &
volume for the change of


entropy of gas
when heated
.

1
6
.

State the 3
rd

law of thermodynamic?

1
7
. Derive the expression of entropy change during simultaneous heating and expansion of ideal gas

1
8
. Why entropy of universe continues increases?

1
9
. Justify the statement that,” Thermodynamics and

kinetics are complimentary to each other.

20. Define state function and path function with two examples of each.

21. Prove that the heat and work are interconvertible forms of each other.

22. What are the limitations of 1
st

law of
thermodynamics?


Question Bank for Chemical Reaction Engineering (12206)

23
. Wha
t do you mean by specific volume & give its unit?

2
4
. Define ideal & real gas?

25
. What

is
differentiating

between standard Gibbs free energy and
equilibrium

constant? Drive

the
same?

26
. Explain

the sign
conversion of


G
where


G is change in
Gibbs

fr
ee
energy

27
. Explain

the significance of
Gibbs

free
energy
.

28
. Explain the feasibility
. How feasibility of the process can be decided?

29
. For

the gas phase reaction

aA+

bB

rR

+

sS
;



prove
that Kp
=Ky

(
P)
)∆n

.

30
. What

is the thermodynamic
eq
uilibrium? Explain

effect of temperature and pressure on


e
quilibrium

conversion( or extent of reaction)

31
. State the
V
ant

Hoff’s equation

and give its utility
.

32
. Give

the relation between Kc,

Kp,

Ky ?

33
. Derive K=k

α
Kp
for
gas phase reaction?

34
. Write short note thermodynamic feasibility of reaction?

35
. Starting from law of mass action prove


G =
-
RTln
K
p

(Vant Hoff’s Isotherm)equation

36
. Explain the temperature dependency of chemical equilibrium for endothermic reaction

37
. Give reason for the

reaction no change in volume position of equilibrium is dependent of pressure?

38
. What is the conservation and yield of reaction? What is mean by thermodynamic feasibility?

39.

An increase temperature reduces of equilibrium conversion for an exothermic
reaction give

reason.

40. Write short notes on Entropy & Internal energy







Question Bank for Chemical Reaction Engineering (12206)


Chapter.02

Introduction to Kinetics

1. Differentiate between order of reaction and molecularity.

2. Explain chain reaction with initiation, propagation and termination steps.

3. Define activation energy. State why reactions with high activation energy are


temperature sensitive.

4. Explain non
-
elementary reactions and types of intermediate involved.

5. Draw concentration profile for series
reaction
A


B


C

6. How chemical reaction are classified. Explain with suitable example of each.

7. What do you understand by parallel and series
reaction
? Explain with


Suitable

example.

8. Explain in brief temperature dependency from Arrhenius theory. Derive mathem
atical
expression.

9. Explain in brief temperature dependency from collision theory. Derive mathematical
expression.

10. Explain in brief temperature dependency from transition state theory. Derive mathematical
expression.

11. Show that the Arrhenius is th
e good approximation between all theories of temperature
dependency.

12. Discuss the different method of expressing the rate of reaction.

13. Define the term a. Rate law expression 2. Rate constant.

14
. What

is differenc
e between rate constant and equilibrium constant.

15. With suitable example explain autocatalytic reaction.

Draw the graph showing progress of
reaction with respect to concentration of reactants.

16
. Compare

collision state theory and transition state theo
ry for temperature dependency of
rate constant.

Question Bank for Chemical Reaction Engineering (12206)

17. State and explain the factors affecting rate of reaction.

18. What is non
-
elementary reaction? What are different types of intermediate involved in non
-
elementary schemes?

19. Write general formula for es
timating units of rate constant for n
th

order reaction.

20
. At

500 k the rate of