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Chemical Reaction Engineering

Chemical Reaction Engineering
For an ideal plug flow reactor, the value of Peclet number is

10
0
∞
1

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Chemical Reaction Engineering
Knudsen diffusion is directly proportional to

1/√T
T₂
√T
T

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Chemical Reaction Engineering
An irreversible first order reaction is being carried out in a CSTR and PFR of same volume. The liquid flow rates are same. The relative conversion will

Depend on the temperature
Be same in both cases
Be more in PFR than in CSTR
Be more in CSTR than in PFR

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Chemical Reaction Engineering
The dimensions of rate constant for reaction 3A → B are (l/gm mole)/min. Therefore the reaction order is

2
3
1

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Chemical Reaction Engineering
The rate constant of a chemical reaction decreases by decreasing the

Pressure
Temperature
Duration of reaction
Concentration of reactants

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Chemical Reaction Engineering
The half life period of a first order reaction is given by (where, K = rate constant. )

1.5 K
0.693/K
2.5 K
6.93 K

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