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

Q. The catalytic converter for conversion of SO₂ to SO₃ by contact process should have a feed with SO₂ content between

View solution

Q. If the pore diffusion controls in a catalytic reaction, the apparent activation energy Eₐ is equal to

View solution

Q. The synthesis of proteins and metabolism in biological objects occur in the presence of biocatalyst called

View solution

Q. Pick out the wrong statement.

View solution

Q. Kinetics of a catalytic reaction can be best studied on a/an __________ reactor.

View solution

Q. In case of a __________ reactor, the composition in the reactor and at the exit of the reactor is the same.

View solution

Q. Exothermic reactions are best carried out in

View solution

Q. The rate of a gas phase reaction is given by K . Cᴀ . Cʙ. If the volume of the reaction vessel is reduced to 1/4th of its initial volume, then the reaction rate compared to the original rate will be __________ times.

View solution

Q. Rate of a chemical reaction is not affected by the

View solution

Q. Overall rate of reaction in a heterogenous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it does not entail a chain mechanism.

View solution