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Chemical Reaction Engineering

Chemical Reaction Engineering
The synthesis of proteins and metabolism in biological objects occur in the presence of biocatalyst called

A ferment or an enzyme
None of these
Fungi
Haemoglobin

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Chemical Reaction Engineering
Arrhenious equation represents graphically the variation between the __________ and temperature.

Rate constant
Frequency factor
Rate of reaction
Activation energy

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Chemical Reaction Engineering
What is the unit of the rate constant in a chemical reaction in which 10% of the reactant decomposes in one hour, 20% in two hours, 30% in three hours and so on?

Moles/litre.second
Litre/second
Litre/mole
Litre/mole.second

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Chemical Reaction Engineering
If Thiele modulus is __________ , then the pore diffusion resistance in a catalyst may be considered as negligible.

0
∞
> 0.5
< 0.5

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Chemical Reaction Engineering
An isothermal aqueous phase reversible reaction, P ⇋ R, is to be carried out in a mixed flow reactor. The reaction rate in k.mole/m³ .h is given by, r = 0.5CP - 0.125CR. A stream containing only P enters the

1.33
1.60
2.67
0.80

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Chemical Reaction Engineering
With increase in temperature, the rate constant obeying Arhenious equation

Decreases
Increases
Decreases exponentially
Can either increase or decrease ; depends on the frequency factor

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