questions. (b) All parts of a question MUST be answered together. (c) Numerical results MUST be reported in SI units. (d) Explicitly mention the sign convention used. (e) Clearly state whether you are using oxidation or reduction potentials in electrochemistry. (f) The question paper contains TWO pages. [Supplied Data: R = 8.314 J mor1 ~ 1 ; 1 Faraday= 96‚500 C mol-1] Ql. (a) For air at temperatures near 25°C and pressure in the range of 0 bar to 50 bar‚ the JouleThomson coefficient (;J.JT) can
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Muhammad Ali Strayer University HUM 111 World Cultures 1 Professor Charles Fleming January 29‚ 2015 Mystery Behind the Pyramids There are various theories out there as to how the pyramids in Egypt were built. One is that slaves were used in their construction and that several different techniques were employed such as the ramp technique to a terraced pyramid. If there were slaves used than their number would have been extraordinarily high. If there were a ramp built‚ then it would have taken
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Nông Trần Gia Hân Class: AE3B WATER SCARCITY : A TIME-BOMB IS ABOUT TO EXPLODE People can survive at least ten days without eating. But without water‚ they will die after only three days. It shows how important water is in people’s daily life. So‚ just imagine how we survive if there’s not any water available. That’s the reason why water scarcity is one of the key environment issues of our time. This essay will identify some major causes and offer three solutions. The shortage of water
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Concepts Start Practice | Alkanes‚ Alkenes and Alk... Start Practice | Surface Chemistry Start Practice | Nuclear Chemistry Start Practice | Purification Characteriz... Start Practice | Environmental Chemistry Start Practice | Electrochemistry Start Practice | | | PHYSICS"Do or Die" Chapters | | | | Current Electricity Start Practice | Heat and Thermodynamics Start Practice | Electrostatics Start Practice | Magnetic effect of Curre... Start Practice |
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temperature on corrosion for both of this materials. Other than that‚ changes on the surface microstructure before and after the corrosion attack also been observed. Then‚ the corrosion attack between WC-6%Co and WC-9%Ni be compared in terms of electrochemistry‚ mechanical properties and microstructure. The experiment were performed at four different temperatures which is 20̊C‚ 40̊C‚ 60̊C and 80̊C. Tafel plot and linear polarization graph are used to determine the corrosion rate of WC-6%Co and WC-9%Ni
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This essay will aim to discuss Calcium 47. calcium 47 is to explore bone metabolism problems or to diagnose calcium disorders. Another way it can be used is in the biomedical research of animals to study the cellular body function and the formation of bones in mammals. Calcium 47 is one of the most important segment on earth. Calcium 47 was discovered by Sir Humphry Davy in 1808.Sir Humphry Davy is a Cornish chemist and inventor also best known in these day’s for isolating a series of substances
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Allotropes are the existence of an element in more than one form. Carbon is one of the elements that contain many allotropes. Each allotrope of carbon has its own different properties. The allotropes of carbon are diamond‚ graphite‚ fullerenes‚ carbon nanotubes‚ carbon nanobuds‚ amorphous carbon‚ glassy carbon‚ lonsdaleite‚ and carbon nanofoam. Diamond is the best know allotrope of carbon. It is the hardest known natural mineral which makes it very rough. In the structure of the diamond‚ each carbon
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(VSA) Total Marks for No. of Total Marks each Question Questions 5 3 2 1 3 9 10 08 30 15 27 20 08 70 Weightage 4 5 5 5 4 3 8 5 3 4 4 6 4 4 3 3 70 Total: S.No. UNIT 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. Solid State Solutions Electrochemistry Chemical Kinetics Surface Chemistry General Principles and Processes of Isolation of Elements p-block Elements d & f- Block Elements Co-ordination Compounds Haloalkanes and Haloarenes Alcohols‚ Phenols & Ethers Aldehydes‚ Ketones & Carboxylic
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[5] O. Engler‚ C. Schafer‚ H. J. Brinkman‚ Acta Materialia‚ 60 (2012) 5217-5232. [6] M. J. Starink‚ L.F. Cao‚ P.A. Rometsch‚ Acta Materialia‚ 60 (2012) 4194-4207. [7] R. K. Gupta‚ N. L. Sukiman‚ K. M. Fleming‚ M. A. Gibson‚ N. Birbilis‚ ECS Electrochemistry Letters‚ 1(1) (2012) C1-C3.
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of marks over different dimensions of the question paper shall be as follows: A. Weightage to content/subject units Unit Title Marks 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. Solid state Solutions Electrochemistry Chemical Kinetics Surface Chemistry General principles and process of Isolation of elements p-Block Elements d-and f-Block Elements Coordination Compounds Haloalkanes and Haloarenes Alcohols‚ Phenols and Ethers Aldehydes‚ Ketones and
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