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Chemical Reaction Engineering

Chemical Reaction Engineering
The rate of the reaction, X → Y, quadruples when the concentration of 'X' is doubled. The rate expression for the reaction is, r = K Cxn, the value of 'n' in this case will be

2
3
1

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Chemical Reaction Engineering
In a semi-batch reactor

Maximum conversion can be controlled
Both the reactants flow counter-currently
Velocity of reaction can be controlled
Residence time is constant

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

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

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Chemical Reaction Engineering
Threshold energy in a reaction is equal to the

Normal energy of reactants
Neither A nor B
Sum of A & B
Activation energy

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Chemical Reaction Engineering
Which of the following chemical reactions will be favoured by low pressure ?

N₂ + O₂ ⇋ 2NO
N₂O₂ ⇋ 2NO₂
None of these
2HI ⇋ H₂ + I₂

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Chemical Reaction Engineering
Find a mechanism that is consistent with the rate equation and reaction given below: 2A + B → A₂B, ( - rA) = k.CA.CB

A + B ⇋ AB ; AB + A → A₂B
A + A ⇋ AA;AA + B → A₂B
A + A ⇋ AA;AA + B → A₂B
A + B ⇋ AB;AB + A → A₂B

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