Firstranker's choice
Code No: R10104/R10
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Set No. 1
I B.Tech I Semester Supplementary Examinations, Oct/Nov 2013
ENGINEERING CHEMISTRY-I
(Common to Civil Engineering, Electrical & Electronics Engineering,
Mechanical Engineering, Electronics & Communication Engineering,
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Computer Science & Engineering, Chemical Engineering, Electronics &
Instrumentation Engineering, Bio-Medical Engineering, Information
Technology, Electronics & Computer Engineering, Aeronautical
Engineering, Automobile Engineering, Mining and Petroliem Technology)
Time: 3 hours Max Marks: 75
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Answer any FIVE Questions
All Questions carry equal marks
?
- (a) What is Joule Thomson coefficient and why it is zero for an ideal gas?
(b) What is meant by solubility product of a sparingly soluble salt? How is solubility product determined by conductivity measurements? [8+7] - (a) Write notes on (i) contact catalysis (ii) catalytic poisons (iii) Tyndall effect (iv) electro-osmosis
(b) What are the important applications of colloidal science. [8+7] - (a) What is meant by interference and what are the interferences observed during working with ion selective electrodes.
(b) Discuss important differences between photochemical and thermo chemical reactions? [8+7] - (a) State and explain the following (i) Stoichiometric semiconducting materials (ii) Controlled valency semiconducting materials
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(b) Write short note on following (i)COMPACT DISK (ii) PEN DRIVE [7+8] - Write a Short note on the following
(a) Fuels
(b) Pulverised coal
(c) classification of fuels [15] - (a)Write a short note on calomel electrode?
(b) Distinguish between a galvanic cell and concentration cell? [8+7] - Write notes on the following:
(a) Nuclear Stability
(b) Mass Defect--- Content provided by FirstRanker.com ---
(c) Binding Energy [5+5+5] - (a) Explain the advantages and disadvantages of solar energy.
(b) What is the difference between green house effect and global warming? How global warming can be prevented by growing plants? [7+8]
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Firstranker's choice
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Code No: R10104/R10
Set No. 2
I B.Tech I Semester Supplementary Examinations, Oct/Nov 2013
ENGINEERING CHEMISTRY-I
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(Common to Civil Engineering, Electrical & Electronics Engineering,
Mechanical Engineering, Electronics & Communication Engineering,
Computer Science & Engineering, Chemical Engineering, Electronics &
Instrumentation Engineering, Bio-Medical Engineering, Information
Technology, Electronics & Computer Engineering, Aeronautical
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Engineering, Automobile Engineering, Mining and Petroliem Technology)
Time: 3 hours Max Marks: 75
Answer any FIVE Questions
All Questions carry equal marks
?
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- (a) Briefly explain how air-conditioning differs from refrigeration.
(b) What are the advantages of reverse osmosis process of purifying brackish water? [8+7] - (a) Explain the following terms. I. Auto-catalysis II. Positive catalyst III. Negative catalyst IV. Catalytic poison
(b) What is catalysis? Write down the important characteristics of catalyst. [8+7] - (a) What is the essential feature of nuclei to show the NMR signal?
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(b) Outline the industrial applications of Chemiluminescence.
(c) What are the engineering applications of sensors and bio-sensors? [5+5+5] - (a) Write an essay on smectic liquid crystals?
(b) Explain phenomenon of superconductivity. [10+5] - (a)Why is peat not considered as an economical fuel.
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(b) Differentiate between coal and coke. [7+8] - (a) What is emf. write note on Redox reactions.
(b) What are the differences between oxidation & reduction half reactions? [7+8] - (a) What is a nuclear fission reaction? Give one example.
(b) Write its any six characteristic properties. [8+7] - (a) Explain the advantages and disadvantages of solar energy.
(b) What is the difference between green house effect and global warming? How global warming can be prevented by growing plants? [7+8]
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?
Firstranker's choice
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Code No: R10104/R10
Set No. 3
I B.Tech I Semester Supplementary Examinations, Oct/Nov 2013
ENGINEERING CHEMISTRY-I
(Common to Civil Engineering, Electrical & Electronics Engineering,
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Mechanical Engineering, Electronics & Communication Engineering,
Computer Science & Engineering, Chemical Engineering, Electronics &
Instrumentation Engineering, Bio-Medical Engineering, Information
Technology, Electronics & Computer Engineering, Aeronautical
Engineering, Automobile Engineering, Mining and Petroliem Technology)
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Time: 3 hours Max Marks: 75
Answer any FIVE Questions
All Questions carry equal marks
?
- (a) Discuss the effect of pressure on the following reactions
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i. H2 + I2 ? 2HI
ii. PCl5 ? PCl3 + Cl2
(b) What are the catalysts used for the production of ammonia and sulphuric acid. [8+7] - (a) Define the following terms. I. catalyst II. Co-catalyst III. Negative catalyst
(b) State and explain homogeneous catalysis any three examples. [8+7] - Explain in brief about the following (i) luorescence (ii) Phosphorescence (iii) Chemiluminescence [5+5+5]
- (a) Write an essay on smectic liquid crystals?
(b) Explain phenomenon of superconductivity. [10+5] - (a)Write a note on Otto Hoffmann’s by - product oven process?
(b) Mention the Recover of bye - products in the above process? [8+7] - (a)Write a short note on standard electrode potential?
(b) Derive Nernst equation for standard electrode potential? [7+8] - (a) What is radioactive pollution? Describe different methods of disposal of radioactive wastes.
(b) How can a nuclear reactor generates its own fuel from non-fissionable material in Breeder reactor? Explain with an example. [8+7] - Write notes on the following:
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(a) Solar Energy
(b) Solar Cell
(c) Solar Panel [5+5+5]
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Firstranker's choice
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Code No: R10104/R10
Set No. 4
I B.Tech I Semester Supplementary Examinations, Oct/Nov 2013
ENGINEERING CHEMISTRY-I
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(Common to Civil Engineering, Electrical & Electronics Engineering,
Mechanical Engineering, Electronics & Communication Engineering,
Computer Science & Engineering, Chemical Engineering, Electronics &
Instrumentation Engineering, Bio-Medical Engineering, Information
Technology, Electronics & Computer Engineering, Aeronautical
--- Content provided by FirstRanker.com ---
Engineering, Automobile Engineering, Mining and Petroliem Technology)
Time: 3 hours Max Marks: 75
Answer any FIVE Questions
All Questions carry equal marks
?
--- Content provided by FirstRanker.com ---
- (a) What is a semipermeable membrane? What are the different materials that can be used for semipermeable membranes?
(b) Why there is a decrease in temperature of a real gas when it undergoes expansion through a porous plug? [8+7] - (a) Define the term viscosity? What are its units?
(b) Explain the various factors affecting viscosity? [8+7] - (a) What are biosensors? Discuss in detail the applications of biosensors in various fields.
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(b) Discuss ion-selective electrodes in detail and outline the interferences during their working [8+7] - (a) Write an essay on stoichiometric and non stoichiometric semiconductors
(b) Explain the synthesis of type super conductor [7+8] - (a) What are the differences between High calorific value & net calorific values of fuels?
(b) 0.945g of fuel complete combustion in excess of oxygen increased the temperature of water in a calorimeter from 13.25 to 19.2°C. The mass of water in calorimeter was found to be 1.458g. Calculate the gross calorific value of the fuel, if the water equivalent of calorimeter is 144g. [8+7] - (a)Write the different types of fuel cells?
(b) Write down the characteristics of fuel cells? [8+7] - (a) Explain how nuclear fission reaction can be a chain reaction.
(b) Distinguish nuclear fission and nuclear fusion reactions. [8+7] - (a) What is solar energy? How is it harnessed?
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(b) How does solar energy can be converted into electricity? [7+8]
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