Chemical Engineering - Chemical Reaction Engineering

1. 

For the same residence time, which one will give the maximum conversion ?

A. Single stirred tank (v = 5 litres).
B. Two stirred tank (each of 2.5 litres) in series.
C. Stirred tank followed by tubular flow reactor (each of 2.5 litres).
D. Single tubular flow reactor (v = 5 litres).

Answer: Option D

Explanation:

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2. 

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

A. N2
B. H2
C. CO2
D. He

Answer: Option A

Explanation:

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3. 

The exit age distribution curve E(t) for an ideal CSTR with the average residence time, τ, is given by

A. e-t/τ
B.
C. 1 - e-t/τ
D.

Answer: Option B

Explanation:

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4. 

The rate constant of a reaction depends on the

A. initial concentration of reactants.
B. time of reaction.
C. temperature of the system.
D. extent of reaction.

Answer: Option C

Explanation:

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5. 

For the reversible reaction A 2B, if the equilibrium constant K is 0.05 mole/litre; starting from initially 2 moles of A and zero moles of B, how many moles will be formed at equilibrium ?

A. 0.253
B. 0.338
C. 0.152
D. 0.637

Answer: Option B

Explanation:

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