For the non-catalytic reaction of particles with surrounding fluid, the time needed to achieve the same fractional conversion for particles of different but unchanging sizes is proportional to the square of particle diameter, when the __________ is the controlling resistance.

Chemical Reaction Engineering
For the non-catalytic reaction of particles with surrounding fluid, the time needed to achieve the same fractional conversion for particles of different but unchanging sizes is proportional to the square of particle diameter, when the __________ is the controlling resistance.

Diffusion through ash layer

Chemical reaction

Either A, B or C

Film diffusion

Diffusion through ash layer

Chemical reaction

Either A, B or C

Film diffusion

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Chemical Reaction Engineering
The excess energy of the reactants required to dissociate into products is known as the __________ energy.

Thermal

Threshold

Activation

Binding

Thermal

Threshold

Activation

Binding

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Chemical Reaction Engineering
For the same residence time, which one will give the maximum conversion?

Single stirred tank (v = 5 litres)

Stirred tank followed by tubular flow reactor (each of 2.5 litres)

Two stirred tank (each of 2.5 litres) in series

Single tubular flow reactor (v = 5 litres)

Single stirred tank (v = 5 litres)

Stirred tank followed by tubular flow reactor (each of 2.5 litres)

Two stirred tank (each of 2.5 litres) in series

Single tubular flow reactor (v = 5 litres)

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Chemical Reaction Engineering
For all positive reaction orders for a particular duty,

Ratio of the volume of the mixed reactor to that of the plug-flow reactor decreases with order

Density variation during reaction affects design

Reactor size is independent of the type of flow

Mixed reactor is always larger than the plug-flow reactor

Ratio of the volume of the mixed reactor to that of the plug-flow reactor decreases with order

Density variation during reaction affects design

Reactor size is independent of the type of flow

Mixed reactor is always larger than the plug-flow reactor

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Chemical Reaction Engineering
The increase in the rate of reaction with temperature is due to

Decrease in activation energy

None of these

Increase in the average kinetic energy of the reacting molecules

Increase in the number of effective collisions

Decrease in activation energy

None of these

Increase in the average kinetic energy of the reacting molecules

Increase in the number of effective collisions

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Chemical Reaction Engineering
The exit age distribution curve E(t) for an ideal CSTR with the average residence time, τ, is given by

E-t/τ/T

1 - (e-t/τ/T)

1 - e-t/τ

E-t/τ

E-t/τ/T

1 - (e-t/τ/T)

1 - e-t/τ

E-t/τ

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Chemical Reaction Engineering

Chemical Reaction Engineering The excess energy of the reactants required to dissociate into products is known as the __________ energy.

Chemical Reaction Engineering For the same residence time, which one will give the maximum conversion?

Chemical Reaction Engineering For all positive reaction orders for a particular duty,

Chemical Reaction Engineering The increase in the rate of reaction with temperature is due to

Chemical Reaction Engineering The exit age distribution curve E(t) for an ideal CSTR with the average residence time, τ, is given by

Chemical Reaction Engineering
The excess energy of the reactants required to dissociate into products is known as the __________ energy.

Chemical Reaction Engineering
For the same residence time, which one will give the maximum conversion?

Chemical Reaction Engineering
For all positive reaction orders for a particular duty,

Chemical Reaction Engineering
The increase in the rate of reaction with temperature is due to

Chemical Reaction Engineering
The exit age distribution curve E(t) for an ideal CSTR with the average residence time, τ, is given by