At a given value of E/R (ratio of activation energy and gas constant), the ratio of the rate constants at 500°K and 400°K is 2, if Arrhenious law is used. What will be this ratio, if transition state theory is used with the same value of E/R?

Chemical Reaction Engineering
At a given value of E/R (ratio of activation energy and gas constant), the ratio of the rate constants at 500°K and 400°K is 2, if Arrhenious law is used. What will be this ratio, if transition state theory is used with the same value of E/R?

2.5

2.24

2

1.6

2.5

2.24

2

1.6

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Chemical Reaction Engineering
The space time is equivalent to the holding time in a steady state mixed reactor for

Variable fluid density systems

Non-isothermal gas reaction

Gas reactions with changing no. of moles

Constant fluid density systems

Variable fluid density systems

Non-isothermal gas reaction

Gas reactions with changing no. of moles

Constant fluid density systems

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Chemical Reaction Engineering
What is the unit of the rate constant in a chemical reaction in which 10% of the reactant decomposes in one hour, 20% in two hours, 30% in three hours and so on?

Moles/litre.second

Litre/second

Litre/mole.second

Litre/mole

Moles/litre.second

Litre/second

Litre/mole.second

Litre/mole

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Chemical Reaction Engineering
Batch process is preferred over continuous process, when the

Same equipment can not be used for several processes of the same nature

All of these

Sales demand of product is not steady

Product yields and quality can not be achieved in continuous process, because of long residence time

Same equipment can not be used for several processes of the same nature

All of these

Sales demand of product is not steady

Product yields and quality can not be achieved in continuous process, because of long residence time

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Chemical Reaction Engineering
BET apparatus is used to determine the

Pore diameter

Pore size distribution

Specific surface of a porous catalyst

Porosity of the catalyst bed

Pore diameter

Pore size distribution

Specific surface of a porous catalyst

Porosity of the catalyst bed

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Chemical Reaction Engineering
The time needed to achieve the same fractional conversion for particles of different sizes (d) when chemical reaction controls, is proportional to

√d

D2

D

D1.5

√d

D2

D

D1.5

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Chemical Reaction Engineering

Chemical Reaction Engineering At a given value of E/R (ratio of activation energy and gas constant), the ratio of the rate constants at 500°K and 400°K is 2, if Arrhenious law is used. What will be this ratio, if transition state theory is used with the same value of E/R?

Chemical Reaction Engineering The space time is equivalent to the holding time in a steady state mixed reactor for

Chemical Reaction Engineering What is the unit of the rate constant in a chemical reaction in which 10% of the reactant decomposes in one hour, 20% in two hours, 30% in three hours and so on?

Chemical Reaction Engineering Batch process is preferred over continuous process, when the

Chemical Reaction Engineering BET apparatus is used to determine the

Chemical Reaction Engineering The time needed to achieve the same fractional conversion for particles of different sizes (d) when chemical reaction controls, is proportional to

Chemical Reaction Engineering
At a given value of E/R (ratio of activation energy and gas constant), the ratio of the rate constants at 500°K and 400°K is 2, if Arrhenious law is used. What will be this ratio, if transition state theory is used with the same value of E/R?

Chemical Reaction Engineering
The space time is equivalent to the holding time in a steady state mixed reactor for

Chemical Reaction Engineering
What is the unit of the rate constant in a chemical reaction in which 10% of the reactant decomposes in one hour, 20% in two hours, 30% in three hours and so on?

Chemical Reaction Engineering
Batch process is preferred over continuous process, when the

Chemical Reaction Engineering
BET apparatus is used to determine the

Chemical Reaction Engineering
The time needed to achieve the same fractional conversion for particles of different sizes (d) when chemical reaction controls, is proportional to