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

Q. __________ resistance is not involved in the combustion of a carbon particle.

View solution

Q. In an ideal P.F.R. at steady state conditions

View solution

Q. Space time in flow reactor is

View solution

Q. For a first order isothermal chemical reaction in a porous catalyst, the effectiveness factor is 0.3. The effectiveness factor will increase if the

View solution

Q. Cold shot cooling is only practical when the feed temperature is __________ than the reaction temperature.

View solution

Q. The preferred reacting system for oxidation of o-xylene to phthalic anhydride is

View solution

Q. In the hydrodealkylation of toluene to benzene, the following reactions occur:

C₇H₈ + H₂ → C₆H₆ + CH₄
2C₆H₆ ↔ C₁₂H₁₀ + H₂

Toluene and hydrogen are fed to a reactor in a molar ratio 1:5. 80% of the toluene gets converted and the selectivity of benzene(defined as moles of benzene formed/moles of toluene converted) is 90%. The fractional conversion of hydrogen is

View solution

Q. Catalyst is a substance, which __________ chemical reaction.

View solution

Q. A rise in temperature

View solution