"A spherical porous catalyst particle of radius R is subjected to reactant A which reacts to form B by a zero order surface reaction A → B. Film mass transfer resistance is negligible and pore diffusion of A is rate controlling. The effectiveness factor of the catalyst is reported as 7/8. Which of the following statement is true?A. Inner catalyst core of radius R/8 does not participate in reaction."

Chemical Reaction Engineering
"A spherical porous catalyst particle of radius R is subjected to reactant A which reacts to form B by a zero order surface reaction A → B. Film mass transfer resistance is negligible and pore diffusion of A is rate controlling. The effectiveness factor of the catalyst is reported as 7/8. Which of the following statement is true?A. Inner catalyst core of radius R/8 does not participate in reaction."

Inner catalyst core of radius R/2 does not participate in reaction

Inner catalyst core of radius R/8 does not participate in reaction

Inner catalyst core of radius 7R/8 does not participate in reaction

Ffectiveness factor for a zero order reaction can not be 7/8 as it must always be 1

Inner catalyst core of radius R/2 does not participate in reaction

Inner catalyst core of radius R/8 does not participate in reaction

Inner catalyst core of radius 7R/8 does not participate in reaction

Ffectiveness factor for a zero order reaction can not be 7/8 as it must always be 1

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Chemical Reaction Engineering
The residence time distribution of an ideal CSTR is

1/τ (-t/τ)

1/τ exp (-t/τ)

Exp(-t/τ)

Τ exp (-t/τ)

1/τ (-t/τ)

1/τ exp (-t/τ)

Exp(-t/τ)

Τ exp (-t/τ)

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Chemical Reaction Engineering
The reactions of high molecularity are rare, because

Of low probability of many body collisions

Of very large activation energy of many bodies

Many body collisions are not favoured energetically

Of requirement of very large concentration for such reactions

Of low probability of many body collisions

Of very large activation energy of many bodies

Many body collisions are not favoured energetically

Of requirement of very large concentration for such reactions

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Chemical Reaction Engineering
The response curve for a step input signal from a reactor is called C-curve. The variance of C-curve in a 'tanks in series model' comprising of 'm' tanks is equal to

√m

1/m

m

m²

√m

1/m

m

m²

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Chemical Reaction Engineering
Organic catalysts differ from the inorganic catalyst in the sense that the former is

Prohibitively costly

Active at very high temperature only

Proteinous in nature

Active at cryogenic temperatures only

Prohibitively costly

Active at very high temperature only

Proteinous in nature

Active at cryogenic temperatures only

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Chemical Reaction Engineering
The optimum performance for reactors operating in parallel is obtained when the feed stream is distributed in such a way, that the

Space time for each parallel line is same

None of these

Space time for parallel lines is different

Larger reactors have more space time compared to smaller ones

Space time for each parallel line is same

None of these

Space time for parallel lines is different

Larger reactors have more space time compared to smaller ones

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Chemical Reaction Engineering

Chemical Reaction Engineering The residence time distribution of an ideal CSTR is

Chemical Reaction Engineering The reactions of high molecularity are rare, because

Chemical Reaction Engineering The response curve for a step input signal from a reactor is called C-curve. The variance of C-curve in a 'tanks in series model' comprising of 'm' tanks is equal to

Chemical Reaction Engineering Organic catalysts differ from the inorganic catalyst in the sense that the former is

Chemical Reaction Engineering The optimum performance for reactors operating in parallel is obtained when the feed stream is distributed in such a way, that the

Chemical Reaction Engineering
The residence time distribution of an ideal CSTR is

Chemical Reaction Engineering
The reactions of high molecularity are rare, because

Chemical Reaction Engineering
The response curve for a step input signal from a reactor is called C-curve. The variance of C-curve in a 'tanks in series model' comprising of 'm' tanks is equal to

Chemical Reaction Engineering
Organic catalysts differ from the inorganic catalyst in the sense that the former is

Chemical Reaction Engineering
The optimum performance for reactors operating in parallel is obtained when the feed stream is distributed in such a way, that the