27 MARCH 2021 CURRENT AFFAIRS QUIZ

The dispersion number of perfect mixed flow is

> 150

< 2100

∞

TRUE ANSWER : ?
YOUR ANSWER : ?

A catalyst in a chemical reaction __________ free energy change in the reaction.

Increases

Neither A nor B

Either A or B; depends on the type of catalyst

Decreases

TRUE ANSWER : ?
YOUR ANSWER : ?

A gaseous reactant is introduced in a mixed reactor of 3 litres volume at the rate of 1 litre/second. The space time is __________ seconds.

43833

32

3

1

TRUE ANSWER : ?
YOUR ANSWER : ?

The rate constant of a reaction is a function of the

Temperature of the system

Time of reaction

Extent of reaction

Initial concentration of the reactants

TRUE ANSWER : ?
YOUR ANSWER : ?

The ratio of volume of mixed reactor to the volume of P.F.R. (for identical flow rate, feed composition and conversion) for zero order reaction is

1

> 1

∞

TRUE ANSWER : ?
YOUR ANSWER : ?

Radioactive decay follows __________ order kinetics.

Zero

Third

Second

First

TRUE ANSWER : ?
YOUR ANSWER : ?

What is the dispersion number for a plug flow reactor?

-1

?

1

TRUE ANSWER : ?
YOUR ANSWER : ?

Reactions with high activation energy are

Always irreversible

Temperature insensitive

Always reversible

Very temperature sensitive

TRUE ANSWER : ?
YOUR ANSWER : ?

The rate constant of a chemical reaction decreases by decreasing the

Concentration of reactants

Duration of reaction

Pressure

Temperature

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not a unit of reaction rate?

Moles formed/volume of reactor) (time)

Moles for med/(surface of catalyst) (time)

None of these

Mole formed/volume of catalyst) (time)

TRUE ANSWER : ?
YOUR ANSWER : ?

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