Q. For a __________ order reaction, the units of rate constant and rate of reaction are the same.

View solution

Q. In case of staged packed bed reactors carrying out exothermic reaction, use

View solution

Q. Vegetable oils are hydrogenated in a __________ reactor.

View solution

Q. With the same reaction time, initial concentration and feed rate, the reaction 2A → B is carried out separately in CSTR and P.F. reactor of equal volumes. The conversion will be

View solution

Q. For any reaction, we may write conversion as a function of

View solution

Q. The use of space time is preferred over the mean residence time in the design of a/an

View solution

Q. Autocatalytic reactions are best carried out in a

View solution

Q. The gas phase reaction 2A ↔ B is carried out in an isothermal plug flow reactor. The feed consists of 80 mole % A and 20 mole % inerts. If the conversion of A at the reactor exit is 50%, then Cᴀ/Cᴀ₀ at the outlet of the reactor is

View solution

Q. Non-catalytic fluid-solid reactions are represented by __________ model.

View solution

Q. A pulse tracer is introduced in an ideal CSTR (with a mean residence time τ) at time, t = 0. The time taken for the exit concentration of the tracer to reach half of its initial value will be

View solution

Q. On application of pressure to the equilibrium system, ice ↔ water ; which of the following phenomenon will occur ?

View solution

Q. Participation of __________ is involved in the occurrence of a chemical reaction.

View solution

Q. Promoter.

View solution

Q. Pure A in gas phase enters a reactor 50% of this A is converted to B through the reaction, A → 3B. Mole fraction of A in the exit stream is

View solution

Q. The rate of reaction does not decrease appreciably as the reaction proceeds in case of __________ reactions.

View solution

Q. For all positive reaction orders for a particular duty,

View solution

Q. The heat of reaction

View solution

Q. Which of the following does not produce a change in the value of rate constant of a reaction ?

View solution

Q. For the same residence time, which one will give the maximum conversion ?

View solution

Q. __________ gas is normally employed in B.E.T.method of finding out the surface area of catalyst.

View solution