Enzymes (a protein) are catalysts found in organisms. Its efficiency of catalysing a reaction is due to its capacity to lower the activation energy of the reaction. The enzyme ptyalin used for food digestion is present in

Chemical Reaction Engineering
Enzymes (a protein) are catalysts found in organisms. Its efficiency of catalysing a reaction is due to its capacity to lower the activation energy of the reaction. The enzyme ptyalin used for food digestion is present in

Intestine

Gland

Blood

Saliva

Intestine

Gland

Blood

Saliva

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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
Half-life period for a first order reaction is __________ the initial concentration of the reactant.

Independent of

Inversely proportional to

None of these

Directly proportional to

Independent of

Inversely proportional to

None of these

Directly proportional to

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Chemical Reaction Engineering
The ratio of moles of a reactant converted into the desired product to that converted into unwanted product is called

Relative yield

Operational yield

Selectivity

None of these

Relative yield

Operational yield

Selectivity

None of these

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Chemical Reaction Engineering
A batch reactor is characterised by

Constant residence time

Variation in reactor volume

Very low conversion

Variation in extent of reaction and properties of the reaction mixture with time

Constant residence time

Variation in reactor volume

Very low conversion

Variation in extent of reaction and properties of the reaction mixture with time

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Chemical Reaction Engineering
Signal normally used to study non-ideal flow by stimulus response technique is __________ input.

Neither A nor B

Both A & B

Pulse

Step

Neither A nor B

Both A & B

Pulse

Step

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Chemical Reaction Engineering

Chemical Reaction Engineering Enzymes (a protein) are catalysts found in organisms. Its efficiency of catalysing a reaction is due to its capacity to lower the activation energy of the reaction. The enzyme ptyalin used for food digestion is present in

Chemical Reaction Engineering Half-life period for a first order reaction is __________ the initial concentration of the reactant.

Chemical Reaction Engineering The ratio of moles of a reactant converted into the desired product to that converted into unwanted product is called

Chemical Reaction Engineering A batch reactor is characterised by

Chemical Reaction Engineering Signal normally used to study non-ideal flow by stimulus response technique is __________ input.

Chemical Reaction Engineering
Enzymes (a protein) are catalysts found in organisms. Its efficiency of catalysing a reaction is due to its capacity to lower the activation energy of the reaction. The enzyme ptyalin used for food digestion is present in

Chemical Reaction Engineering
Half-life period for a first order reaction is __________ the initial concentration of the reactant.

Chemical Reaction Engineering
The ratio of moles of a reactant converted into the desired product to that converted into unwanted product is called

Chemical Reaction Engineering
A batch reactor is characterised by

Chemical Reaction Engineering
Signal normally used to study non-ideal flow by stimulus response technique is __________ input.