21. When a high liquid hold up is required in a reactor for gas liquid reaction, use __________ coloumn.
22. Promoter is added to the catalyst to improve its
23. The ratio of moles of a reactant converted into the desired product to that converted into unwanted product is called
24. For a first order chemical reaction in a porous catalyst, the Thiele modulus is 10. The effectiveness factor is approximately equal to
25. In which of the following reactions the equilibrium will shift to the right, if the total pressure is increased?
26. An example of autothermal reactor operation is
27. The performance of a cascade of CSTR's can be improved by adding
28. For identical flow rate, feed composition and for elementary first order reactions, 'N' equal sized mixed reactors in series with a total volume 'V' gives the same conversion as a single plug flow reactor of volume 'V' for constant density systems. This is true, when the value of 'N' is
29. Rate of a chemical reaction is independent of the concentration of the reactants for a __________ reaction.
30. Kinetics of a solid catalysed reaction can best be studied in a __________ reactor.
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