CHEMICAL REACTION ENGINEERING QUIZ

In a zero order reaction, reactants concentration does not change with time and the

Time for half change is half the time taken for completion of the reaction

Time for completion of the reaction is independent of the initial concentration

Reaction rate is trebled when the initial concentration is trebled

Time for half change is independent of the initial concentration

TRUE ANSWER : ?
YOUR ANSWER : ?

Recycling back of outlet stream to the reactor from an ideal CSTR carrying out a first order liquid phase reaction will result in __________ in conversion.

Either A or B, depends on the type of reaction

Decrease

Increase

No change

TRUE ANSWER : ?
YOUR ANSWER : ?

6 gm of carbon is burnt with an amount of air containing 18 gm oxygen. The product contains 16.5 gms CO₂ and 2.8 gms CO besides other constituents. What is the degree of conversion on the basis of disappearance of limiting reactant?

0.2

1

0.75

0.95

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YOUR ANSWER : ?

A photochemical reaction is

Initiated by light

Catalysed by light

All of these

Accompanied with emission of light

TRUE ANSWER : ?
YOUR ANSWER : ?

What is the dispersion number for a plug flow reactor?

1

?

-1

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A catalyst is said to be a negative catalyst, ifit

All of these

Does not initiate the reaction

Reduces the value of equilibrium constant

Retards the rate of reaction

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The dimensions of rate constant for reaction 3A → B are (l/gm mole)/min. Therefore the reaction order is

2

3

1

TRUE ANSWER : ?
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B.E.T. method can be used to determine the __________ of a porous catalyst.

Pore volume

Surface area

All of these

Solid density

TRUE ANSWER : ?
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Chemical kinetics can predict the __________ of a chemical reaction.

Feasibility

Neither A nor B

Rate

Both A & B

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Endothermic

Photochemical

Exothermic

Biochemical

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YOUR ANSWER : ?

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