Paper-II

Section A
1. Answer any four of the following:
a. What is proximate analysis of Coal? How do you classify Coals? Give examples
b. Discuss the Second Law of Thermodynamics and its applications
c. What are the ideal reactors? Emphasize the basic assumptions. Write the performance equations for each of these reactors (No need for derivation)
d. Discuss the concepts of Effective Diffusivity, Effective thermal conductivity and Effectiveness factor
e. Discuss the concepts of fugacity, activity and chemical potential
2. A natural gas having a composition of CH4: 80% (by C2H6: 8.0, C3H8: 4.5, C4H10: 2.0, C5H12: 1.0, CO2: 2.5 and N2: 2.0 is burnt with excess air in a burner. The burner gases contain (on dry-basis) CO2: 10.3, N2: 85.9 and O2: 3.8. Calculate the per cent excess air supplied and also the composition of the burner gases on wet basis

3. Calculate the equilibrium constant for the vapour-phase dehydration of ethanol to ethylene at 350° C. The reaction is: Data: Values of the constants in the heat capacity equation:

4. What is the importance of pore-diffusion in gas-solid (porous catalyst) reactions? Derive an expression for the effectiveness factor for I order kinetics and single cylindrical pore

Section B
5. Answer any four of the following:
a. What are the various raw materials! Feed stocks used to produce hydrogen in the manufacture of ammonia
b. What are the various routes to produce VCM? Discuss their relevance to India
c. How the industrial solid wastes are disposed
d. What is the Environment (Protection) Act 1986? Discuss the provisions under it
e. What are the various factors taken into consideration in laying out of a chemical plant
6. Answer the following questions
a. What are the by-products/co-products of sugar manufacture and their uses
b. Sugar plant is an example of total energy recovery concept. Elaborate
c. Describe with a neat flow-sheet a modern sugar production plant
7. Answer the following questions
a. What are the major industrial liquid pollutants (in the effluents)
b. List the techniques used for removal of dissolved organic solids
c. Discuss the principle and operation of a Tricklebed filter (with a neat sketch) in liquid effluent treatment
8. Answer the following questions
a. What is Project Scheduling
b. What is the difference between PERT and CPM
c. Draw up a typical PERT/CPM Charts for setting up a medium scale chemical plant