Rate constant for a first order reaction does not depend upon reaction time, extent of reaction and the initial concentration of reactants ; but it is a function of reaction temperature. In a chemical reaction, the time required to reduce the concentration of reactant from 100 gm moles/litre to 50 gm moles/litre is same as that required to reduce it from 2 gm moles/litre to 1 gm mole/litre in the same volume. Then the order of this reaction is

Chemical Reaction Engineering
Rate constant for a first order reaction does not depend upon reaction time, extent of reaction and the initial concentration of reactants ; but it is a function of reaction temperature. In a chemical reaction, the time required to reduce the concentration of reactant from 100 gm moles/litre to 50 gm moles/litre is same as that required to reduce it from 2 gm moles/litre to 1 gm mole/litre in the same volume. Then the order of this reaction is

0

3

2

1

0

3

2

1

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Chemical Reaction Engineering
Overall rate of reaction in a heterogenous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it does not entail a chain mechanism.

Independent of

Inversely proportional to

Proportional to the square of

Proportional to

Independent of

Inversely proportional to

Proportional to the square of

Proportional to

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Chemical Reaction Engineering
An isothermal irreversible reaction is being carried out in an ideal tubular flow reactor. The conversion in this case will __________ with decrease in space time.

Increase

Increase exponentially

Decrease

Remain unchanged

Increase

Increase exponentially

Decrease

Remain unchanged

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Chemical Reaction Engineering
Semibatch reactor is preferred, when a/an

A highly exothermic reaction is to be controlled

All of these

A gas is to be reacted with liquid (e.g. hydrogenation of fat)

Undersirable side reaction (at high concentration of one of the reactants) is to be avoided

A highly exothermic reaction is to be controlled

All of these

A gas is to be reacted with liquid (e.g. hydrogenation of fat)

Undersirable side reaction (at high concentration of one of the reactants) is to be avoided

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Chemical Reaction Engineering
The rate of the chemical reaction A → B doubles as the concentration of A i.e.., CA is doubled. If rate of reaction is proportional to CAn, then what is the value of n for this reaction?

2

0.5

1

2

0.5

1

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Chemical Reaction Engineering
With increase in the space time of an irreversible isothermal reaction being carried out in a P.F. reactor, the conversion will

Decrease

Remain same

Data in insufficient; can't be predicted

Increase

Decrease

Remain same

Data in insufficient; can't be predicted

Increase

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Chemical Reaction Engineering

Chemical Reaction Engineering Overall rate of reaction in a heterogenous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it does not entail a chain mechanism.

Chemical Reaction Engineering An isothermal irreversible reaction is being carried out in an ideal tubular flow reactor. The conversion in this case will __________ with decrease in space time.

Chemical Reaction Engineering Semibatch reactor is preferred, when a/an

Chemical Reaction Engineering The rate of the chemical reaction A → B doubles as the concentration of A i.e.., CA is doubled. If rate of reaction is proportional to CAn, then what is the value of n for this reaction?

Chemical Reaction Engineering With increase in the space time of an irreversible isothermal reaction being carried out in a P.F. reactor, the conversion will

Chemical Reaction Engineering
Overall rate of reaction in a heterogenous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it does not entail a chain mechanism.

Chemical Reaction Engineering
An isothermal irreversible reaction is being carried out in an ideal tubular flow reactor. The conversion in this case will __________ with decrease in space time.

Chemical Reaction Engineering
Semibatch reactor is preferred, when a/an

Chemical Reaction Engineering
The rate of the chemical reaction A → B doubles as the concentration of A i.e.., CA is doubled. If rate of reaction is proportional to CAn, then what is the value of n for this reaction?

Chemical Reaction Engineering
With increase in the space time of an irreversible isothermal reaction being carried out in a P.F. reactor, the conversion will