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CHEMICAL REACTION ENGINEERING

Chemical Reaction Engineering
The response curve for a step input signal from a reactor is called C-curve. The variance of C-curve in a 'tanks in series model' comprising of 'm' tanks is equal to

1/m
m²
m
√m

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Chemical Reaction Engineering
Reactions with high activation energy are

Temperature insensitive
Always reversible
Very temperature sensitive
Always irreversible

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Chemical Reaction Engineering
The minimum energy required to allow a chemical reaction to proceed is termed as the 'threshold energy '. Chemical reaction with low activation energy are

Mostly irreversible
Always irreversible
Highly temperature sensitive
Insensitive to temperature changes

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Chemical Reaction Engineering
Catalytic action in a catalytic chemical reaction follows from the ability of catalyst to change the

Equilibrium constant
Heat of reaction
Activation energy
None of these

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Chemical Reaction Engineering
If the catalyst pore size is small in comparison with the mean free path, collisions with the pore wall controls the process'. The diffusivity under this condition is called 'Knudsen diffusivity', which is affected by the

Pressure
Both A & B
Temperature
Neither A nor B

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