CHEMICAL REACTION ENGINEERING QUIZ

For the reaction, A + B → 2B + C,

rA = rB/2

rA = rB

rA = 2rB

rA = -rB

TRUE ANSWER : ?
YOUR ANSWER : ?

The catalyst in a second order reversible reaction increases the rate of the forward reaction

Only

To a greater extent than that of the backward reaction

And backward reaction equally

And decreases that of backward reaction

TRUE ANSWER : ?
YOUR ANSWER : ?

Consider the 'n' th order irreversible liquid phase reaction A → B. Which one of the following plots involving half life of the reaction (t1/2) and the initial reactant concentration (CA0) gives a straight line plot?

Ln CA0 Vs ln t1/2

Ln CA0 Vs t1/2

CA0 Vs t1/2

CA0 Vs ln t1/2

TRUE ANSWER : ?
YOUR ANSWER : ?

A Catalyst

Changes the equilibrium constant of the reaction

None of these

Increases the equilibrium concentration of the product

Shortens the time to reach the equilibrium

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Solid density

Pore volume

Surface area

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Study of chemical kinetics is the easiest in the case of __________ reactions.

Surface

Irreversible

Reversible

Side

TRUE ANSWER : ?
YOUR ANSWER : ?

__________ gas is normally employed in B.E.T.method of finding out the surface area of catalyst.

H₂

He

CO₂

N₂

TRUE ANSWER : ?
YOUR ANSWER : ?

'Unreacted core model' represents the reaction involving

None of these

Combustion of coal particles

Manufacture of carbon disulphide from elements

Roasting of sulphide ores

TRUE ANSWER : ?
YOUR ANSWER : ?

__________ explains the mechanism of catalysis.

Activated complex theory

None of these

Thermodynamics

Collision theory

TRUE ANSWER : ?
YOUR ANSWER : ?

The dispersion number of perfect mixed flow is

< 2100

∞

> 150

TRUE ANSWER : ?
YOUR ANSWER : ?

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