Q421
Open questionWhen a high liquid hold up is required in a reactor for gas liquid reaction, use __________ coloumn.
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Chemical Engineering · all questionsChemical Reaction Engineering
Chemical Reaction Engineering
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Q422
Open questionPromoter is added to the catalyst to improve its
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Q423
Open questionThe ratio of moles of a reactant converted into the desired product to that converted into unwanted product is called
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Q424
Open questionFor a first order chemical reaction in a porous catalyst, the Thiele modulus is 10. The effectiveness factor is approximately equal to
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Q425
Open questionIn which of the following reactions the equilibrium will shift to the right, if the total pressure is increased?
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Q426
Open questionAn example of autothermal reactor operation is
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Q427
Open questionThe performance of a cascade of CSTR's can be improved by adding
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Q428
Open questionFor 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
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Q429
Open questionRate of a chemical reaction is independent of the concentration of the reactants for a __________ reaction.
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Q430
Open questionKinetics of a solid catalysed reaction can best be studied in a __________ reactor.
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Q431
Open questionThe rate of the reaction, X → Y, quadruples when the concentration of 'X' is doubled. The rate expression for the reaction is, r = K Cxn, the value of 'n' in this case will be
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Q432
Open questionWhich of the following is not a chemical step in a fluid solid catalytic reaction?
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Q433
Open questionThe dispersion number of perfect mixed flow is
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Q434
Open questionSometimes, batch process is preferred over continuous process, when the product
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Q435
Open questionFor high conversion in a highly exothermic solid catalysed reaction, use a __________ bed reactor.
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Q436
Open questionThe rate of the chemical reaction A → B doubles as the concentration of A i.e., CA is doubled. If rate of reaction is proportional to CAn, then what is the value of n for this reaction?
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Q437
Open questionWhich of the following fixes the volume of a batch reactor for a particular conversion and production rate?
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Q438
Open questionThe 'E' curve for a non-ideal reactor defines the fraction of fluid having age between t and t + dt
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Q439
Open questionThe conversion XA and residence time data are collected for zero order liquid phase reaction in a stirred tank reactor. Which of the following will be a straight line?
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Q440
Open questionThe reactions with low activation energy are
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