Q. Recycling back of outlet stream to the reactor from an ideal CSTR carrying out a first order liquid phase reaction will result in __________ in conversion.

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Q. The energy balance equation over a tubular reactor under transient conditions is

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Q. The ratio of moles of a reactant converted into the desired product to that converted into unwanted product is called

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Q. The response curve for a step input signal from a reactor is called C-curve. The variance of C-curve in a 'tanks in series model' comprising of 'm' tanks is equal to

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Q. The eddy diffusivity for a liquid in plug flow must be

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Q. For multiple reactions, the flow pattern within the vessel affects the

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Q. An endothermic second order reaction is carried out in an adiabatic plug flow reactor. The rate of heat generation is

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Q. Equilibrium of a chemical reaction as viewed by kinetics is a __________ state.

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Q. The conversion in a mixed reactor/accomplishing a reaction A → 3R is 50% when gaseous reactant 'A' is introduced at the rate of 1 litre/second and the leaving flow rate is 2 litres/second. The holding time for this operation is __________ second.

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Q. The size of plug flow reactor (PFR) for all positive reaction orders and for any given duty, is __________ that of mixed reactor.

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Q. A space time of 3 hours for a flow reactor means that

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Q. Which of the following factors control the deactivation of a porous catalyst pellet ?

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Q. For the reaction, A + B → 2B + C,

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Q. Pick out the wrong statement.

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Q. In a reversible reaction, a catalyst increases the rate of forward reaction

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Q. Maximum equilibrium conversion for endothermic reaction is obtained at the __________ temperature.

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Q. When an exothermic reversible reaction is conducted adiabatically, the rate of reaction

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Q. For 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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Q. In solid catalysed reactions the diffusional effects are more likely to affect the overall rate of reaction for

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Q. Helium-mercury method can be used to determine the __________ of the catalyst particle.

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