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Note: Answer all questions from Part-A. Answer any FIVE questions from Part-B.
PART ? A (25 Marks)
1 Free energy change for a reaction involving two electrons in a cell is -125
kJ/mole. Calculate emf of the cell. 3
series.? 3
3 Carnot cycle operates between source temperature of 1'50
D
CJ, and sink
?
C and absorbs 250 Joules of heat from source. '.Calculate the
work produced by carnot cycle.
3
5 Explain the cause for prevention of corrosion of metalSbypaint. 2
6 What is the importance of calcium carbonate equivalent
,
in water chemistry and
7 How will you distinguish plastic from elastomer? 2
8 How are the silicone polymer chains cured :
,
or cross-linked? 2
10 Give the principle of rocket propulsion 2
PART ? B (50 Marks)
11 a) Distinguish reversible cell .from irreversible cell with examples.
b) Give construction, half Cell hotation, Nernst equation and significance of
12 a) Describe Carnottheorem and give its significance.
b) Give the importance of free energy and drawback of entropy with derivation of
criteria for spontaneity and equilibrium in terms of these two.
13 a) Compare with examples and chemical reactions of galvanic corrosion with
b) Explain the electroplating of Nickel.
14 a) Give the differences between thermoset and thermoplastic resins with
examples.
b) Give the preparation and applications of carbon nanotubes.
significance.
b) Define and give the importance of octane number and cetane number.
16 Give the construction and chemical reactions during the operation of the cells as
given below
17 a) Discuss the phase diagram of water system with its significance.
b) Discuss the importance of breakpoint chlorination with graph in water
chemistry.
4
4
6
6
4
5
6
4
5+5
4
* **
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Note: Answer all questions from Part-A. Answer any FIVE questions from Part-B.
PART ? A (25 Marks)
1 Free energy change for a reaction involving two electrons in a cell is -125
kJ/mole. Calculate emf of the cell. 3
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2 How can you predict the spontaneous nature of reaction from electrochemicalseries.? 3
3 Carnot cycle operates between source temperature of 1'50
D
CJ, and sink
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temperature of 50?
C and absorbs 250 Joules of heat from source. '.Calculate the
work produced by carnot cycle.
3
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4 Explain the importance of phase rule. 25 Explain the cause for prevention of corrosion of metalSbypaint. 2
6 What is the importance of calcium carbonate equivalent
,
in water chemistry and
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define PPM? 37 How will you distinguish plastic from elastomer? 2
8 How are the silicone polymer chains cured :
,
or cross-linked? 2
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9 Give the uses and composition of diesel-an petrol. 310 Give the principle of rocket propulsion 2
PART ? B (50 Marks)
11 a) Distinguish reversible cell .from irreversible cell with examples.
b) Give construction, half Cell hotation, Nernst equation and significance of
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hydrogen electrode.12 a) Describe Carnottheorem and give its significance.
b) Give the importance of free energy and drawback of entropy with derivation of
criteria for spontaneity and equilibrium in terms of these two.
13 a) Compare with examples and chemical reactions of galvanic corrosion with
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differential aeration corrosion.b) Explain the electroplating of Nickel.
14 a) Give the differences between thermoset and thermoplastic resins with
examples.
b) Give the preparation and applications of carbon nanotubes.
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15 a) Explain with flow diagram of cracking by fixed bed catalytic cracking and itssignificance.
b) Define and give the importance of octane number and cetane number.
16 Give the construction and chemical reactions during the operation of the cells as
given below
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a) Methanol-oxygen fuel cell b) Nickel-cadmium battery17 a) Discuss the phase diagram of water system with its significance.
b) Discuss the importance of breakpoint chlorination with graph in water
chemistry.
4
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64
6
6
4
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55
6
4
5+5
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64
* **
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