Code No: R07A1BS08 Set No. 1
I B.Tech Semester Regular Examinations, June 2009
PHYSICAL CHEMISTRY
(Chemical Engineering)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
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1. Explain in detail the application of distribution law in solvent extraction. [16]
2. Draw the phase diagram and explain the different curves of the water system. [16]
3. (a) Milk is pasteurized if it is heated to 50oC for 30 min, but if it is heated to
69oC it only needs 10 sec for the same result. Find the activation energy of
this sterilization process.
(b) Explain the effect of temperature on activation energy. [6+10]
4. Write notes on [4+4+4+4]
(a) Dilution test.
(b) Spreading test.
(c) Dye test.
(d) Electrokinetic potential.
5. (a) Describe the application of Kohlrausch’s law and conductometric titrations.
(b) Write a note on migration of ions. [10+6]
6. Describe the working principle of photo voltaic cell and discuss in detail. [16]
7. (a) Describe the catalyst types
(b) Mention the examples of heterogeneous catalytic reactions. [8+8]
8. (a) Describe micro electrodes and dropping mercury electrode with neat sketch.
(b) Distinguish between voltametry and polarography. [8+8]
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