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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

None of these
Haemoglobin
A ferment or an enzyme
Fungi

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Chemical Reaction Engineering
Which of the following is used for calcination of limestone and dolomite in industrial practice?

None of these
Moving bed reactor
Fixed bed reactor
Fluidised bed reactor

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Chemical Reaction Engineering
At a given temperature, K₁, K₂ and K3 are equilibrium constants for the following reactions 1, 2, 3 respectively. CH₄(g) + H₂O(g) ⇋ CO(g) + 3H₂(g), CO(g) + H₂O(g) ⇋ CO₂(g) + H₂(g) CH₄(g) + 2H₂O(g) ⇋ CO₂(g) + 4H₂(g) Then K₁, K₂ and K3 are related as:

K3 = K₁.K₂
K3 = (K₁.K₂)2
K3(K₁+K₂)/2
K3 = (K₁.K₂)0.5

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Chemical Reaction Engineering
Radioactive decay follows __________ order kinetics.

Zero
Second
Third
First

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Chemical Reaction Engineering
Fluid flow in a real packed bed can be approximated as __________ model.

Tank in series
Plug flow
Dispersion
Mixed flow

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Chemical Reaction Engineering
A batch reactor suffers from following disadvantage.

High shutdown time requirement for emptying, cleaning and refilling
Poor product quality control
All of these
High labour and handling cost

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