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Chemical Reaction Engineering

Chemical Reaction Engineering
The rate constant of a first order reaction depends on the

Temperature
Concentration of the product
Time
Concentration of the reactant

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Chemical Reaction Engineering
Which of the following fixes the volume of a batch reactor for a particular conversion and production rate?

Operating conditions (e.g. pressure and temperature)
Rate constant
Density of mixture
None of these

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Chemical Reaction Engineering
The effectiveness factor for large value of Thiele modulus (L√(K/D1)) of a solid catalysed first order reaction is equal to (where, L = length of the reactor, cm, D1 = diffusion co-efficient, cm²/second)

1/(L√(K/D1))
∞
L√(K/D1)
1

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

Temperature
Concentration of reactants
Duration of reaction
Pressure

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Chemical Reaction Engineering
The rate of forward reaction, at chemical equilibrium is____the rate of backward reaction.

Less than
More than
Either B or C
Equal to

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Chemical Reaction Engineering
A first order reaction A → B occurs in an isothermal porous catalyst pellet of spherical shape. If the concentration of A at the centre of the pellet is much less than at the external surface, the process is limited by

External mass transfer
Diffusion within the pellet
Reaction
None of these

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