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.

Either A, B or C

Film diffusion

Chemical reaction

Diffusion through ash layer

Either A, B or C

Film diffusion

Chemical reaction

Diffusion through ash layer

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Chemical Reaction Engineering
Calcination reaction of limestone (CaCO₃ → CaO + CO₂) goes to completion in the rotary kiln, because

CaO is not dissociated

CaO is more stable than CaCO₃

CO₂ escapes continuously

Of high calcination temperature

CaO is not dissociated

CaO is more stable than CaCO₃

CO₂ escapes continuously

Of high calcination temperature

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Chemical Reaction Engineering
A first order irreversible reaction, A → B is carried out separately in a constant volume as well as in a variable volume reactor for a particular period. It signifies that __________ in the two reactors.

Both the conversion as well as concentrations will be different

None of these

Conversion in both will be the same but concentrations will be different

Both conversion as well as concentration are same

Both the conversion as well as concentrations will be different

None of these

Conversion in both will be the same but concentrations will be different

Both conversion as well as concentration are same

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Chemical Reaction Engineering
In case of the irreversible unimolecular type, first order reaction, the fractional conversion at any time for constant volume system as compared to variable volume system is

Either A or B, depends on other factors

Less

Same

More

Either A or B, depends on other factors

Less

Same

More

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Chemical Reaction Engineering
When a catalyst increases the rate of chemical reaction, the rate constant

Increases

Remains constant

Becomes infinite

Decreases

Increases

Remains constant

Becomes infinite

Decreases

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Chemical Reaction Engineering
If the rate of a chemical reaction becomes slower at a given temperature, then the

Free energy of activation is lower

Entropy changes

Initial concentration of the reactants remains constant

Free energy of activation is higher

Free energy of activation is lower

Entropy changes

Initial concentration of the reactants remains constant

Free energy of activation is higher

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Chemical Reaction Engineering

Chemical Reaction Engineering Calcination reaction of limestone (CaCO₃ → CaO + CO₂) goes to completion in the rotary kiln, because

Chemical Reaction Engineering A first order irreversible reaction, A → B is carried out separately in a constant volume as well as in a variable volume reactor for a particular period. It signifies that __________ in the two reactors.

Chemical Reaction Engineering In case of the irreversible unimolecular type, first order reaction, the fractional conversion at any time for constant volume system as compared to variable volume system is

Chemical Reaction Engineering When a catalyst increases the rate of chemical reaction, the rate constant

Chemical Reaction Engineering If the rate of a chemical reaction becomes slower at a given temperature, then the

Chemical Reaction Engineering
Calcination reaction of limestone (CaCO₃ → CaO + CO₂) goes to completion in the rotary kiln, because

Chemical Reaction Engineering
A first order irreversible reaction, A → B is carried out separately in a constant volume as well as in a variable volume reactor for a particular period. It signifies that __________ in the two reactors.

Chemical Reaction Engineering
In case of the irreversible unimolecular type, first order reaction, the fractional conversion at any time for constant volume system as compared to variable volume system is

Chemical Reaction Engineering
When a catalyst increases the rate of chemical reaction, the rate constant

Chemical Reaction Engineering
If the rate of a chemical reaction becomes slower at a given temperature, then the