Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 3rd Sem New 2133506 Physico Chemical Processes Previous Question Paper
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ? III (New) EXAMINATION ? WINTER 2019
Subject Code: 2133506 Date: 5/12/2019
Subject Name: Physico-chemical Processes
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
MARKS
Q.1 (a) Write a note on consecutive reaction. 03
(b) Write a note on Armstrong theory of indicators. 04
(c) Write a note on electric double layer and zeta potential. 07
Q.2 (a) Give example for zero, one and two degree of freedom. 03
(b) What is the difference between electro chemical and
electrolytic cell? Explain galvanic cell in details.
04
(c) What do you mean pseudo order reaction? Derive equation
for zero order reaction.
07
OR
(c) Write a note on buffer solution and derive the equation for
both acid and base.
07
Q.3 (a) Write a note on application of colloids. 03
(b) What do you mean by thermochemistry? Derive equation for
calculation of half-cell potential.
04
(c) Write a note on purification techniques of colloids. 07
OR
Q.3 (a) Explain mechanism of catalysis for acid base in details 03
(b) What do you mean by redox reaction? Explain Daniel cell in
details.
04
(c) Explain one component water system by neat and clean
phase diagram.
07
Q.4 (a) Define the term colloids. Give classification of colloids
based on disperse phase and disperse medium.
03
(b) Derive units of zero, first, second and third order reaction. 04
(c) Write a short note on common ion effect with examples. 07
OR
Q.4 (a) Draw phase diagram for four phase and one component
system
03
(b) Find the pH of a buffer solution containing 0.10 mole per
litre CH3COONa and 0.12 mole per litre CH3COOH. Ka for
acetic acid is 1.8 ? 10
? 5
.
04
(c) What do you mean by condensed system? Explain phase rule
for condensed system.
07
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Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ? III (New) EXAMINATION ? WINTER 2019
Subject Code: 2133506 Date: 5/12/2019
Subject Name: Physico-chemical Processes
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
MARKS
Q.1 (a) Write a note on consecutive reaction. 03
(b) Write a note on Armstrong theory of indicators. 04
(c) Write a note on electric double layer and zeta potential. 07
Q.2 (a) Give example for zero, one and two degree of freedom. 03
(b) What is the difference between electro chemical and
electrolytic cell? Explain galvanic cell in details.
04
(c) What do you mean pseudo order reaction? Derive equation
for zero order reaction.
07
OR
(c) Write a note on buffer solution and derive the equation for
both acid and base.
07
Q.3 (a) Write a note on application of colloids. 03
(b) What do you mean by thermochemistry? Derive equation for
calculation of half-cell potential.
04
(c) Write a note on purification techniques of colloids. 07
OR
Q.3 (a) Explain mechanism of catalysis for acid base in details 03
(b) What do you mean by redox reaction? Explain Daniel cell in
details.
04
(c) Explain one component water system by neat and clean
phase diagram.
07
Q.4 (a) Define the term colloids. Give classification of colloids
based on disperse phase and disperse medium.
03
(b) Derive units of zero, first, second and third order reaction. 04
(c) Write a short note on common ion effect with examples. 07
OR
Q.4 (a) Draw phase diagram for four phase and one component
system
03
(b) Find the pH of a buffer solution containing 0.10 mole per
litre CH3COONa and 0.12 mole per litre CH3COOH. Ka for
acetic acid is 1.8 ? 10
? 5
.
04
(c) What do you mean by condensed system? Explain phase rule
for condensed system.
07
2
Q.5 (a) Explain promoters, inhibitors and catalytical poisoning with
examples.
03
(b) The pH of a buffer solution containing 0.8 mole/litre of
acetic acid and 0.7 mole/litre sodium acetate has been found
to be 4.80. What will be the pH of this solution after 0.3
mole/litre HCl has been added to the buffer? Assume that
the volume is unchanged. A= 1.75 ? 10
? 5
.
04
(c) Explain intermediate compound formation theory of
catalysis with suitable example.
07
OR
Q.5 (a) Give the method of preparation of colloids. 03
(b) Derive relation between free energy and electro motive
force.
04
(c) Explain heterogeneous catalysis with examples. 07
*************
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This post was last modified on 20 February 2020