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Chemical Reaction Engineering

Chemical Reaction Engineering
Which of the following is not a chemical step in a fluid solid catalytic reaction?

Surface chemical reaction
None of these
Adsorption
Desorption

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Chemical Reaction Engineering
A chemical reaction is of zero order, when the reaction rate is (where, CA = concentration of reactant)

None of these
Independent of temperature
∝ CA
∝ 1/CA

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Chemical Reaction Engineering
The concentration of A in a first order reaction, A → B, decreases

Logarithmically with time
Very abruptly towards the end of the reaction
Linearly with time
Exponentially with time

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Chemical Reaction Engineering
When a high liquid hold up is required in a reactor for gas liquid reaction, use __________ coloumn.

Packed
Spray
Tray
Bubble

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Chemical Reaction Engineering
A high space velocity means that a given

Conversion can be obtained with a high feed rate
Both A and B
None of these
Reaction can be accomplished with small reactor

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Chemical Reaction Engineering
Reaction rate of a first order reaction, which is half completed in 23 minutes will be

0.03 sec⁻¹
0.03 hr⁻¹
0.05 min⁻¹
0.03 min⁻¹

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