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Chemical Reaction Engineering

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

First
Second
Third
Zero

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Chemical Reaction Engineering
Calcination reaction of limestone (CaCO₃ → CaO + CO₂) goes to completion in the rotary kiln, because

CaO is more stable than CaCO₃
CO₂ escapes continuously
CaO is not dissociated
Of high calcination temperature

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Chemical Reaction Engineering
Half life period of a chemical reaction is proportional to CA0-1 , if the reaction is of __________ order.

Third
First
Zero
Second

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Chemical Reaction Engineering
From among the following, choose one which is not an exothermic process.

Ammonia synthesis
Oxidation of sulphur
Catalytic cracking
Methanol synthesis

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Chemical Reaction Engineering
Rate of a chemical reaction is not influenced by the

Reactants concentration
Number of molecules of reactants taking part in a reaction
Temperature
Catalyst

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Chemical Reaction Engineering
To maximise the formation of R in the simultaneous reactionA + B → R , rR = 2CA0.5.CB2 A + B → S , rS = 1.5 CA . CB We should have

Low CA, high CB
High CA, low CB
High CA, high CB
Low CA, low CB

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