In a first order reaction, the time required to reduce the concentration of reactant from 1 mole/litre to 0.5 mole/litre will be __________ that required to reduce it from 10 moles/litre to 5 moles/litre in the same volume.

Chemical Reaction Engineering
In a first order reaction, the time required to reduce the concentration of reactant from 1 mole/litre to 0.5 mole/litre will be __________ that required to reduce it from 10 moles/litre to 5 moles/litre in the same volume.

Data insufficient; can't be predicted

More than

Less than

Same as

Data insufficient; can't be predicted

More than

Less than

Same as

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Chemical Reaction Engineering
If helium is introduced in a reactor containing O₂, SO₂ and SO₃ at equilibrium, so that total pressure increases while volume and temperature remains constant. In this case the dissociation of SO₃ (as per Le Chatlier principle)

Decreases

Remains unaltered

Increases

Changes unpredictably

Decreases

Remains unaltered

Increases

Changes unpredictably

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Chemical Reaction Engineering
A first order reaction requires two unequal sized CSTR. Which of the following gives higher yield ?

Either of the arrangement A or B will give the same yield

Data insufficient, can

Smaller reactor followed by larger one

Large reactor followed by smaller one

Either of the arrangement A or B will give the same yield

Data insufficient, can

Smaller reactor followed by larger one

Large reactor followed by smaller one

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Chemical Reaction Engineering
Study of chemical kinetics is the easiest in the case of __________ reactions.

Side

Irreversible

Surface

Reversible

Side

Irreversible

Surface

Reversible

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Chemical Reaction Engineering
In a reversible reaction, a catalyst increases the rate of forward reaction

To a greater extent than that of the backward reaction

And the backward reaction equally

And decreases that of the backward reaction

Only

To a greater extent than that of the backward reaction

And the backward reaction equally

And decreases that of the backward reaction

Only

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Chemical Reaction Engineering
Pick the WRONG design guideline for a reactor in which the reactions, A → R (desired) and A → S (undesired) are to take place. The ratio of the reaction rates is rR/rS = (k₁/k₂).Csub>Aa-b

Avoid recycle, when a > b

Use CSTR with a high conversion, when a > b

Use high pressure and eliminate inerts, when a > b

Use batch reactor or plug flow reactor, when a > b

Avoid recycle, when a > b

Use CSTR with a high conversion, when a > b

Use high pressure and eliminate inerts, when a > b

Use batch reactor or plug flow reactor, when a > b

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Chemical Reaction Engineering

Chemical Reaction Engineering In a first order reaction, the time required to reduce the concentration of reactant from 1 mole/litre to 0.5 mole/litre will be __________ that required to reduce it from 10 moles/litre to 5 moles/litre in the same volume.

Chemical Reaction Engineering If helium is introduced in a reactor containing O₂, SO₂ and SO₃ at equilibrium, so that total pressure increases while volume and temperature remains constant. In this case the dissociation of SO₃ (as per Le Chatlier principle)

Chemical Reaction Engineering A first order reaction requires two unequal sized CSTR. Which of the following gives higher yield ?

Chemical Reaction Engineering Study of chemical kinetics is the easiest in the case of __________ reactions.

Chemical Reaction Engineering In a reversible reaction, a catalyst increases the rate of forward reaction

Chemical Reaction Engineering Pick the WRONG design guideline for a reactor in which the reactions, A → R (desired) and A → S (undesired) are to take place. The ratio of the reaction rates is rR/rS = (k₁/k₂).Csub>Aa-b

Chemical Reaction Engineering
In a first order reaction, the time required to reduce the concentration of reactant from 1 mole/litre to 0.5 mole/litre will be __________ that required to reduce it from 10 moles/litre to 5 moles/litre in the same volume.

Chemical Reaction Engineering
If helium is introduced in a reactor containing O₂, SO₂ and SO₃ at equilibrium, so that total pressure increases while volume and temperature remains constant. In this case the dissociation of SO₃ (as per Le Chatlier principle)

Chemical Reaction Engineering
A first order reaction requires two unequal sized CSTR. Which of the following gives higher yield ?

Chemical Reaction Engineering
Study of chemical kinetics is the easiest in the case of __________ reactions.

Chemical Reaction Engineering
In a reversible reaction, a catalyst increases the rate of forward reaction

Chemical Reaction Engineering
Pick the WRONG design guideline for a reactor in which the reactions, A → R (desired) and A → S (undesired) are to take place. The ratio of the reaction rates is rR/rS = (k₁/k₂).Csub>Aa-b