CHEMICAL REACTION ENGINEERING QUIZ

Limiting reactant in a chemical reaction decides the

Conversion

Rate constant

Reaction speed

Equilibrium constant

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is an autocatalytic reaction?

Enzyme fermentation reaction

Ammonia synthesis reaction

Photochemical reactions

Microbial fermentation reaction

TRUE ANSWER : ?
YOUR ANSWER : ?

Reactions with high activation energy are

Always reversible

Very temperature sensitive

Always irreversible

Temperature insensitive

TRUE ANSWER : ?
YOUR ANSWER : ?

Exposure of a photographic plate to produce a latent image is an example of __________ reaction.

Photochemical

Very slow

Both B and C

Very fast

TRUE ANSWER : ?
YOUR ANSWER : ?

A batch reactor is characterised by

Variation in reactor volume

Very low conversion

Variation in extent of reaction and properties of the reaction mixture with time

Constant residence time

TRUE ANSWER : ?
YOUR ANSWER : ?

Threshold energy in a reaction is equal to the

Normal energy of reactants

Activation energy

Sum of A & B

Neither A nor B

TRUE ANSWER : ?
YOUR ANSWER : ?

For a first order chemical reaction in a porous catalyst, the Thiele modulus is 10. The effectiveness factor is approximately equal to

0.5

1

0.1

TRUE ANSWER : ?
YOUR ANSWER : ?

If a solid-gas non-catalytic reaction occurs at very high temperature, the rate controlling step is the __________ diffusion.

Ash layer

Film

None of these

Pore

TRUE ANSWER : ?
YOUR ANSWER : ?

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

-0.5

-0.25

1

TRUE ANSWER : ?
YOUR ANSWER : ?

Vegetable oils are hydrogenated in a __________ reactor.

Homogeneous catalytic

Slurry

None of these

Plug flow

TRUE ANSWER : ?
YOUR ANSWER : ?

↑