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

Blood

Intestine

Gland

Saliva

Blood

Intestine

Gland

Saliva

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Chemical Reaction Engineering
Time required for 50% decomposition of a liquid in an isothermal batch reactor following first order kinetics is 2 minutes. The time required for 75% decomposition will be about __________ minutes.

3

4

8

6

3

4

8

6

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Chemical Reaction Engineering
A Catalyst

Changes the equilibrium constant of the reaction

Shortens the time to reach the equilibrium

None of these

Increases the equilibrium concentration of the product

Changes the equilibrium constant of the reaction

Shortens the time to reach the equilibrium

None of these

Increases the equilibrium concentration of the product

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Chemical Reaction Engineering
If the time required for half change is inversely proportional to the square of initial concentration and the velocity depends on the units in which the concentration term is expressed, then the order of reaction is

1

2

3

0

1

2

3

0

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Chemical Reaction Engineering
In case of staged packed bed reactors carrying out exothermic reaction, use

Plug flow for dilute liquid requiring no large preheating of feed

Cold shot operations for a dilute solution requiring large preheating to bring the stream upto the reaction temperature

High recycle for pure gas

All of these

Plug flow for dilute liquid requiring no large preheating of feed

Cold shot operations for a dilute solution requiring large preheating to bring the stream upto the reaction temperature

High recycle for pure gas

All of these

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Chemical Reaction Engineering
In solid catalysed reactions the diffusional effects are more likely to affect the overall rate of reaction for

Fast reactions in catalyst of small pore diameter

Slow reactions in catalyst of large pore diameter

Fast reaction in catalyst of large pore diameter

Slow reactions in catalyst of small pore diameter

Fast reactions in catalyst of small pore diameter

Slow reactions in catalyst of large pore diameter

Fast reaction in catalyst of large pore diameter

Slow reactions in catalyst of small pore diameter

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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 Time required for 50% decomposition of a liquid in an isothermal batch reactor following first order kinetics is 2 minutes. The time required for 75% decomposition will be about __________ minutes.

Chemical Reaction Engineering A Catalyst

Chemical Reaction Engineering If the time required for half change is inversely proportional to the square of initial concentration and the velocity depends on the units in which the concentration term is expressed, then the order of reaction is

Chemical Reaction Engineering In case of staged packed bed reactors carrying out exothermic reaction, use

Chemical Reaction Engineering In solid catalysed reactions the diffusional effects are more likely to affect the overall rate of reaction for

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
Time required for 50% decomposition of a liquid in an isothermal batch reactor following first order kinetics is 2 minutes. The time required for 75% decomposition will be about __________ minutes.

Chemical Reaction Engineering
A Catalyst

Chemical Reaction Engineering
If the time required for half change is inversely proportional to the square of initial concentration and the velocity depends on the units in which the concentration term is expressed, then the order of reaction is

Chemical Reaction Engineering
In case of staged packed bed reactors carrying out exothermic reaction, use

Chemical Reaction Engineering
In solid catalysed reactions the diffusional effects are more likely to affect the overall rate of reaction for