Download SGBAU B-Tech 5th Sem Chemical Engineering Thermodyamics Question Paper

Download SGBAU (Sant Gadge Baba Amravati university) B-Tech/BE (Bachelor of Technology) 5th Sem Chemical Engineering Thermodyamics Previous Question Paper

B.chh. Filth Semester (CIIE. Tech. (F ood, P & P, O & P and Petro.) ((308)
11027 : Chemical Engineering Thermodynamics - II : 5 CT 03
AW - 3157 1 P.T.O
P. Pages: 2 _ IIIIIIJIIIIIIIIIII AW - 3157
Time: ThreeHours . o 1 5 3 . Max.Marks: 80
Notes : 1. Answer Three question from Section "A" and three question from Section "B".
2. Due credit will be given to neatness and adequate dimensions.
3. Assume suitable data wherever necessary.
4. Diagram and Chemicals equations should be given wherever necessary.
5. Illustrate your answer necessary m?th the help of neat sketches.
6. Use of pen Blue/Black ink/re?ll only for vwiting the answer book.
SECTION - A
1 a) De?ne entropy, enthalpy and internal energy of a system. How much is the entropy
change for a reversible process and irreversible process?
b) Explain the types of thermodynamic systems and thermodynamic processes m'th suitable
examples.
OR
2. a) State and explain ?rst law of thermodynamics and extensive and intensive properties of a
system.
b) W but do you mean by thermodynamic equilibrium? In a certain process, 350 Joules of
heat is absorbed by a system, while 95 Joules of external work is done on the system.
What is the change in internal energy of the process?
3 a) How is second law of thermodynamics stated by Clausius and Ludwig Boltzmann and
how to evaluate performance of a heat engine?
13) State and explain Maxwell relations. One mole ofa gas (CV =12.55J / mol k)at 300?C is
compressed adiabatically and reversibly to one fourth of its original volume. What will be
the ?nal temperature of gas. R = 8.314.
OR
4 a) Explain the concept of free energy and residual entropy of a system with some example.
b) Explain coef?cient of thermal expansion and the relationship between CP and CV. 3
moles of hydrogen gas is compressed isothermally and reversibly from 60 dm3 to 20 dm3
and 8.22 k] ofwork is done on it. What will be the temperature of gas? R = 8.314
5 a) Explain Gibbs Duhem equation and solubility law.
b) What are excess thermodynamic properties.
OR

6. 3]
b)
7. a)
b)
8. a)
b)
9. at
b)
10. a)
b)
11. a)
b)
12. at
b)
AW - 3157
Explain the term fugacit) and chemical potential of a system.
What an: partial molar and apparent molar properties?
SECTION - B
How to compare ideal and non-ideal systems? Also explain the construction of x-y diagram.
How to construct an equilateral triangle diagram? Explain with suitable example.
OR
What is phase rule? Explain the meaning ofeach term involved in phase rule.
Explain Rault's law and Henry's law with suitable example.
What do you understand by partition function and how is it related with thermodynamic
funclions?
Derive Boltzmann distribution law and explain its application.
OR
Discms themiodynamic probability and its relation with entropy.
Explain the techniques to search thermodynamic data Ufa system.
Exp] 1in various representations of equilibrium constant and the signi?cance of free energy
Chan ge.
15 moles of Hz and 5.2 moles of 12 are mixed and allowed to attain equilibrium at 500?(?.
Al equilibrium, the concentration of HI is found to be 10 mol. Calculate the equilibrium
coma? for the formation 01' HI.
OR
Expliin the effect of temperature on equilibrium constant.
1.6 moles of PC15 (g) is placed in 4 dm3 closed vessel. When the temperature is raised to
500? K, it decomposes as: PCI5 :PC13 +C12
At equilibrium 12 moles of PC15 remains.
Calculate the value of equilibrium constant for the decomposition of PC15 .
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IQ