Brunaur, Emmet and Teller (BET) equation is used to determine the specific surface area of a porous particle but not the pore volume & the porosity of the catalyst bed. Which of the following postulates is not used to derive BET equation?

Chemical Reaction Engineering
Brunaur, Emmet and Teller (BET) equation is used to determine the specific surface area of a porous particle but not the pore volume & the porosity of the catalyst bed. Which of the following postulates is not used to derive BET equation?

The adsorbed layer may be polymolecular in thickness and the heat of adsorption in each layer (except the first one) is involved in each of the evaporation process

None of these

Langmuir

There is no dynamic equilibrium between successive layer

The adsorbed layer may be polymolecular in thickness and the heat of adsorption in each layer (except the first one) is involved in each of the evaporation process

None of these

Langmuir

There is no dynamic equilibrium between successive layer

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Chemical Reaction Engineering
In the converter of the contact process for the manufacture of H₂SO₄ the equilibrium conversion of SO₂ (i) with increase in temperature and (ii) with increase in the mole ratio of SO₂ to air.

(i) increases (ii) decreases

(i) decreases (ii) increases

(i) increases (ii) increases

(i) decreases (ii) decreases

(i) increases (ii) decreases

(i) decreases (ii) increases

(i) increases (ii) increases

(i) decreases (ii) decreases

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Chemical Reaction Engineering
Most important characteristics of gas-liquid reactors are the

Both A and B

Specific inter-facial area

Liquid hold-up

None of these

Both A and B

Specific inter-facial area

Liquid hold-up

None of these

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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

Gland

Intestine

Saliva

Blood

Gland

Intestine

Saliva

Blood

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Chemical Reaction Engineering
For the same residence time, which one will give the maximum conversion?

Single stirred tank (v = 5 litres)

Two stirred tank (each of 2.5 litres) in series

Single tubular flow reactor (v = 5 litres)

Stirred tank followed by tubular flow reactor (each of 2.5 litres)

Single stirred tank (v = 5 litres)

Two stirred tank (each of 2.5 litres) in series

Single tubular flow reactor (v = 5 litres)

Stirred tank followed by tubular flow reactor (each of 2.5 litres)

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Chemical Reaction Engineering
Transition state theory gives the rate constant as

K α eE/RT

K α T . e-E/RT

K α √T . e-E/RT

K α e-E/RT

K α eE/RT

K α T . e-E/RT

K α √T . e-E/RT

K α e-E/RT

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Chemical Reaction Engineering

Chemical Reaction Engineering Brunaur, Emmet and Teller (BET) equation is used to determine the specific surface area of a porous particle but not the pore volume & the porosity of the catalyst bed. Which of the following postulates is not used to derive BET equation?

Chemical Reaction Engineering In the converter of the contact process for the manufacture of H₂SO₄ the equilibrium conversion of SO₂ __________ (i) __________ with increase in temperature and __________ (ii) __________ with increase in the mole ratio of SO₂ to air.

Chemical Reaction Engineering Most important characteristics of gas-liquid reactors are the

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 For the same residence time, which one will give the maximum conversion?

Chemical Reaction Engineering Transition state theory gives the rate constant as

Chemical Reaction Engineering
Brunaur, Emmet and Teller (BET) equation is used to determine the specific surface area of a porous particle but not the pore volume & the porosity of the catalyst bed. Which of the following postulates is not used to derive BET equation?

Chemical Reaction Engineering
In the converter of the contact process for the manufacture of H₂SO₄ the equilibrium conversion of SO₂ (i) with increase in temperature and (ii) with increase in the mole ratio of SO₂ to air.

Chemical Reaction Engineering
Most important characteristics of gas-liquid reactors are the

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
For the same residence time, which one will give the maximum conversion?

Chemical Reaction Engineering
Transition state theory gives the rate constant as