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Posted By: India Member Level: Diamond Posted Date: 21 Dec 2007
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2005 Jawaharlal Nehru Technological University JNTU I Year B.Tech (RR10803)-Reg.June'05 -Set 1- Introduction to Chemical Engineering Question paper
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Code No: RR10803 Set No.1
I B.Tech. Regular Examinations, June -2005
INTRODUCTION TO CHEMICAL ENGINEERING
(Chemical Engineering)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. Explain the Rayleigh and Buckingham methods of dimensional analysis.
2. Define heat of reaction and how the standard heat of reaction can be calculated
from heat of formation and heat of combustion of substances.
3. Write a note on transportation of liquids through pipes and channels.
4. Explain steady-state conduction of heat flow into and to out side of tank?
5. (a) Write the relation between individual and overall mass transfer coefficients
and also mention units of each.
(b) Briefly explain design of packed adsorption column.
6. (a) With a neat sketch briefly explain the construction and working principle of
Bubble - Cap plate column.
(b) Give some industrially important packing materials used in packed column.
7. (a) Discuss about the various factors for the selection of liquid-liquid extraction
contactors.
(b) Mention the various techniques adopted for the production of phase inter-
dispersion and counter flow in liquid-liquid contactors.
(c) Give at least two examples each for differential and stage-wise contactors.
8. (a) Define drying. How is it different from evaporation, dehydration, freeze- drying and gas drying?
(b) Explain how heat and mass transfer occur simultaneously during drying. Mention the uses of drying operation.
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