CHEMICAL REACTION ENGINEERING QUIZ

Reactions with high activation energy are

Always irreversible

Always reversible

Very temperature sensitive

Temperature insensitive

TRUE ANSWER : ?
YOUR ANSWER : ?

Carbon particles accummulated on the catalyst used in the gas oil cracking lies in the category of __________ poison.

Selectivity

Stability

Deposited

Chemisorbed

TRUE ANSWER : ?
YOUR ANSWER : ?

In which of the following reactions, thee-quilibrium will shift to the right, if the total pressure is increased?

N₂ + O₂ ⇋ 2NO

N₂O₄ ⇋ 2 NO₂

H₂ + Cl₂ ⇋ 2HCl

H₂ + I₂ ⇋ 2HI

TRUE ANSWER : ?
YOUR ANSWER : ?

The equilibrium constant of a catalytic chemical reaction __________ due to the presence of a catalyst.

Increases

Unpredictable from the data

Decreases

Remains unaffected

TRUE ANSWER : ?
YOUR ANSWER : ?

What is the order of a chemical reaction whose rate is deter-mined by the variation of one concentration term only?

Zero

Second

Third

First

TRUE ANSWER : ?
YOUR ANSWER : ?

The space time is equivalent to the holding time in a steady state mixed reactor for

Constant fluid density systems

Variable fluid density systems

Non-isothermal gas reaction

Gas reactions with changing no. of moles

TRUE ANSWER : ?
YOUR ANSWER : ?

A first order reaction requires two equal sized CSTR. The conversion is

More when they are connected in series

More when they are connected in parallel

Same whether they are connected in series or in parallel

Less when they are connected in series

TRUE ANSWER : ?
YOUR ANSWER : ?

With the same reaction time, initial concentration and feed rate, the reaction 2A → B is carried out separately in CSTR and P.F. reactor of equal volumes. The conversion will be

Same in both the reactors

Higher in CSTR

Data insufficient; can't be predicted

Higher in P.F. reactor

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

1

-0.5

-0.25

TRUE ANSWER : ?
YOUR ANSWER : ?

In a continuous flow stirred tank reactor, the composition of the exit stream

None of these

Depends upon the flow rate of inlet stream

Is same as that in the reactor

Is different than that in the reactor

TRUE ANSWER : ?
YOUR ANSWER : ?

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