Q. A Catalyst

View solution

Q. The unit of frequency factor in Arhenious equation is

View solution

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)

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

Q. Fluidised bed reactor is characterised by

View solution

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

View solution

Q. Space time equals the mean residence time

View solution

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.

View solution

Q. What is the dispersion number for a plug flow reactor ?

View solution

Q. The decomposition of A into B is represented by the exothermic reaction, A ↔ 2B. To achieve maximum decomposition, it is desirable to carry out the reaction.

View solution