CHEMICAL REACTION ENGINEERING QUIZ

A photochemical reaction is __________ light.

Accompanied with emission of

Catalysed by

Initiated by

Used to convert heat energy into

TRUE ANSWER : ?
YOUR ANSWER : ?

The reaction between oxygen and organic material is a/an __________ reaction.

Exothermic

Photochemical

Endothermic

Biochemical

TRUE ANSWER : ?
YOUR ANSWER : ?

If CA is the quantity of reactants initially present, the quantity left after 'n' half periods will be equal to

(CA)1/2n

(CA)1/n

(CA)n

(1/2)n.CA

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not endothermic in nature?

Combustion of sulphur

Thermal cracking of fuel oil

Gasification of carbon

Steam reforming of naphtha

TRUE ANSWER : ?
YOUR ANSWER : ?

A Catalyst

Shortens the time to reach the equilibrium

Increases the equilibrium concentration of the product

None of these

Changes the equilibrium constant of the reaction

TRUE ANSWER : ?
YOUR ANSWER : ?

A first order reaction is to be treated in a series of two mixed reactors. The total volume of the two reactors is minimum, when the reactors are

Equal in size

None of these

Of such size that the ratio of their volumes is < 5

Of different sizes

TRUE ANSWER : ?
YOUR ANSWER : ?

The equilibrium constant K of a chemical reaction depends on

Ratio of reactants

Pressure only

Temperature only

Temperature and pressure

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is the most suitable for very high pressure gas phase reaction?

Tubular flow reactor

Fluidised bed reactor

Stirred tank reactor

Batch reactor

TRUE ANSWER : ?
YOUR ANSWER : ?

Design of heterogeous catalytic reactor involves consideration of __________ steps.

Only physical

Only chemical

Neither A nor B

Both A & B

TRUE ANSWER : ?
YOUR ANSWER : ?

When a catalyst increases the rate of forward reaction, the value of rate constant

Remain same

Increases

Becomes infinite

Decreases

TRUE ANSWER : ?
YOUR ANSWER : ?

↑