Q. The knowledge of initial concentration and rate constant is necessary to determine the half life time of a reaction of __________ order.

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Q. Which of the following factors control the design of a fluid-solid reactor ?

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Q. A Catalyst

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Q. The unit of frequency factor in Arhenious equation is

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Q. With increase in the order of reaction (for all positive reaction orders), the ratio of the volume of mixed reactor to the volume of plug flow reactor (for identical feed composition, flow rate and conversion)

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Q. Reaction of benzene with chlorine gas to produce tri-chlorobenzene exemplifies a/an __________ reaction.

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Q. For the gaseous reaction 2A → B, where the feed consists of 50 mole % A and 50 mole % inerts, the expansion factor is

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Q. The molecularity and the order of reaction respectively, for the hydrolysis of methyl acetate in presence of acids are

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Q. The irreversible reaction is a special case of reversible reaction, if the

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Q. A pollutant P degrades according to first order kinetics. An aqueous stream containing P at 2 kmole/m³ and volumetric flow rate 1 m³/h requires a mixed flow reactor of volume V to bring down the pollutant level to 0.5 kmole/m³ . The inlet concentration of the pollutant is now doubled and the volumetric flow rate is tripled. If the pollutant level is to be brought down to the same level of 0.5 kmole/m³ , the volume of the mixed flow reactor should be increased by a factor of

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Q. For the liquid phase parallel reactions:

R, rR = K₁.Cᴀ₂; E₁ = 80 KJ/mole
S, rs = K₁.Cᴀ ; E₂ = 120 KJ/mole

The desired product is R. A higher selectivity of R will be achieved, if the reaction is conducted at

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Q. With increase in initial concentration, the fractional conversion of a first order reaction in a given time

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Q. The rate of reaction of a/an __________ reaction is not affected by temperature rise.

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Q. With an increase in pressure in gaseous phase chemical reactions, the fractional conversion __________ when the number of moles decreases.

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Q. Half-life period for a first order reaction is __________ the initial concentration of the reactant.

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Q. Carbon particles accummulated on the catalyst used in the gas oil cracking lies in the category of __________ poison.

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Q. Fluidised bed reactor is characterised by

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Q. In which of the following gaseous phase reversible reactions, the product yield can not be increased by the application of high pressure ?

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Q. Space time equals the mean residence time

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Q. A liquid decomposes by irreversible first order kinetics and the half life period of this reaction is 8 minutes. The time required for 75% conversion of the liquid will be __________ minutes.

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