Chemical Reaction Engineering - Chemical Engineering Questions and Answers

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When a catalyst increases the rate of chemical reaction, the rate constant

decreases

increases

remains constant

becomes infinite

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In which of the following reactions, the equilibrium will shift to the right, if the total pressure is increased?

H₂ + Cl₂

2HCl

N₂ + O₂

2NO

N₂O₄

2 NO₂

H₂ + I₂

2HI

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The catalyst in a first order chemical reaction changes the

equilibrium constant

activation energy

heat of formation of the product

heat of reaction

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Oil is hydrogenated using nickel catalyst in a __________ reactor.

batch

slurry

fluidised bed

fixed bed

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The performance equations for constant density systems are identical for

P.F.R. and backmix reactor.

P.F.R. and batch reactor.

P.F.R, batch reactor and backmix reactor.

batch reactor and backmix reactor.

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Reaction rate of a first order reaction, which is half completed in 23 minutes will be

0.03 sec^-1

0.03 min^-1

0.03 hr^-1

0.05 min^-1

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Which of the following is the optimum operating condition for an exothermic reversible reaction taking place in a plug-flow reactor ?

Temperature should be high in the beginning and decreased towards the end of the reaction.

Very low temperature should be used throughout the reaction.

Very high temperature should be used throughout the reaction.

none of these.

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The half life period 't' of a zero order reaction, , is equal to

C_A0/2K

C_A0/K

0.693/K

1/K

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The point selectivity of the product 'Y' in the reaction,

is equal to

K₁/K₂

K₂/K₁

K₁-K₂

K₂-K₁