Part B.
PART ?A - (Marks : 25)
What is Quinhydrone electrode Write the reduction electrode reaction of
it.
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Write a short note on Ni-Cd battery.Differentiate between Gibb's and . Helmholtz free energy.. 2
State phase rule and explain the terms involved.. 3
What are boiler troubles_? How are they prevented ? 3
Write a short note on differential aeration corrosion. 2
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Distinguish between addition, and condensation polymerization. 3Write the applications of Carbon rianotubes. 2:
What are the requirements of a good fuel ? 3
Define octane and cetane number of a fuel.
PART B (Marks : 50)
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11. (a)? What ,is electrochemical series ? Give, its applications with suitableexamples. ?
5
(b) Describe the construction of lead-acid battery With the reactions
occurring during discharge. 5
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12. (a) What is Carnot cycle ? Derive an expreSsion for the efficiency ofCarnot engine.
6
(b) The temperature of 1 mole of an ideal gas increases from 18 ?C to
55 ?C as the gas is compressed adiabatically. Calculate. the ,work
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dohe and ?H for this process assuming that C, 413. (a) Differentiate between chemical and electrochemical corrosion. 4
(b) Discuss the various factors that influenCe the rate of corrosion'. 6
14. (a) What are plastics, fibres and elastomers.? Give one example to each. 4
(b) What is vulcanization of rubber ? What are its advantages over raw
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rubber ?(c) Give the applications of conducting polymers. 3
1.
2.
3.
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4.5.
8.
9.
10.
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(This paper contains 2 pages) 1 P.T.O.FirstRanker.com - FirstRanker's Choice
Code No. 3315/N
FACULTY OF ENGINEERING & INFORMATICS
B.E. I Year (New) (Common, to all branches) (Main) Examination, June 2011
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ENGINEERING CHEMISTRYTime : 3 Hours ] [ Max. Marks : 75
Note : Answer 'all questions from Part ? A. Answer any five Questions from
Part B.
PART ?A - (Marks : 25)
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What is Quinhydrone electrode Write the reduction electrode reaction ofit.
Write a short note on Ni-Cd battery.
Differentiate between Gibb's and . Helmholtz free energy.. 2
State phase rule and explain the terms involved.. 3
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What are boiler troubles_? How are they prevented ? 3Write a short note on differential aeration corrosion. 2
Distinguish between addition, and condensation polymerization. 3
Write the applications of Carbon rianotubes. 2:
What are the requirements of a good fuel ? 3
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Define octane and cetane number of a fuel.PART B (Marks : 50)
11. (a)? What ,is electrochemical series ? Give, its applications with suitable
examples. ?
5
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(b) Describe the construction of lead-acid battery With the reactionsoccurring during discharge. 5
12. (a) What is Carnot cycle ? Derive an expreSsion for the efficiency of
Carnot engine.
6
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(b) The temperature of 1 mole of an ideal gas increases from 18 ?C to55 ?C as the gas is compressed adiabatically. Calculate. the ,work
dohe and ?H for this process assuming that C, 4
13. (a) Differentiate between chemical and electrochemical corrosion. 4
(b) Discuss the various factors that influenCe the rate of corrosion'. 6
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14. (a) What are plastics, fibres and elastomers.? Give one example to each. 4(b) What is vulcanization of rubber ? What are its advantages over raw
rubber ?
(c) Give the applications of conducting polymers. 3
1.
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2.3.
4.
5.
8.
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9.10.
(This paper contains 2 pages) 1 P.T.O.
Cock No. 3315/N
15. (a) Differentiate between High and l_ow calorific value of a fuel. 2
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(b) Explain proximate analysis of coal. What is its importance? 4(o) Write a sh,o,rt note on LPG and CNG. 4
16. (a) Explain the principle and procedure involved in potentiometric acid-
base titrations. ' 4
(b) _ 2 mole of an ideal gas expands isothermally from .a
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,volume of
1-0 litres to 20 litres at 27 ?C. Calculate the entropy change in the
process. 3
tC) Distinguish between temporary and permanent hardness of water.. 3
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LioaR,
17. (a) Give the preparation, .properties and uses of the following 4
(i) ?PVC
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'(ii) Perlon-U' (b) What's the principle of Rocket propulsion '? 2
N
/
(o).
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100 ml of a water sample required 20 ml of H2
$0
4
fir
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neutralization to phenolphthalein end point. After,this,5
Mehyl orange
indicator was added to this and further acid required was 15 mi.
Calculate the type and amount Of alkalinity of watqr. . 4
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?-
2 5,800
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