Introduction To Chemical Engineering

NR

Code No: NR10803

I B.Tech Supplementary 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. (a) Describe the Chemical Engineering applications for the essential needs of mankind? (b) Define unit operations in a chemical process. 2. (a) Describe the boundary layer formation on a flat plate for a fluid stream. (b) State and explain the equation of continuity. 3. Describe the conditions for fluidization in catalytic cracking fluidized bed? 4. Explain the boiling point elevation and Duhring’s rule? 5. (a) Define mass transfer rate and explain molar flux. (b) Describe adsorption process and their broad classification. 6. (a) With a neat sketch briefly explain the construction and working principle of packed column and discuss the merits and demerits of the same. (b) What is meant by “ fractional extraction”? 7. (a) Discuss the multistage extraction process for separation of a liquid mixture consisting of two components A and B. (b) Explain the use of triangular diagram in liquid-liquid systems with a neat figure. 8. (a) Industrial dryers may be classified in several ways. Write about the three most useful ways of classification. (b) How are adiabatic and non-adiabatic dryers classified? Write briefly about each. ?????

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