If the catalyst pore size is small in comparison with the mean free path, collisions with the pore wall controls the process'. The diffusivity under this condition is called 'Knudsen diffusivity', which is affected by the

Chemical Reaction Engineering
If the catalyst pore size is small in comparison with the mean free path, collisions with the pore wall controls the process'. The diffusivity under this condition is called 'Knudsen diffusivity', which is affected by the

Temperature

Pressure

Both A & B

Neither A nor B

Temperature

Pressure

Both A & B

Neither A nor B

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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?

There is no dynamic equilibrium between successive layer

None of these

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

Langmuir

There is no dynamic equilibrium between successive layer

None of these

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

Langmuir

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

Proteinous in nature

Prohibitively costly

Active at very high temperature only

Active at cryogenic temperatures only

Proteinous in nature

Prohibitively costly

Active at very high temperature only

Active at cryogenic temperatures only

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Chemical Reaction Engineering
The increase in the rate of reaction with temperature is due to

Increase in the number of effective collisions

Increase in the average kinetic energy of the reacting molecules

Decrease in activation energy

None of these

Increase in the number of effective collisions

Increase in the average kinetic energy of the reacting molecules

Decrease in activation energy

None of these

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Chemical Reaction Engineering
Calcination reaction of limestone (CaCO₃ → CaO + CO₂) goes to completion in the rotary kiln, because

CaO is not dissociated

CaO is more stable than CaCO₃

Of high calcination temperature

CO₂ escapes continuously

CaO is not dissociated

CaO is more stable than CaCO₃

Of high calcination temperature

CO₂ escapes continuously

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Chemical Reaction Engineering
For the reversible reaction A ⇋ 2B, if the equilibrium constant K is 0.05 mole/litre; starting from initially 2 moles of A and zero moles of B, how many moles will be formed at equilibrium?

0.637

0.152

0.338

0.253

0.637

0.152

0.338

0.253

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Chemical Reaction Engineering

Chemical Reaction Engineering If the catalyst pore size is small in comparison with the mean free path, collisions with the pore wall controls the process'. The diffusivity under this condition is called 'Knudsen diffusivity', which is affected by the

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

Chemical Reaction Engineering The increase in the rate of reaction with temperature is due to

Chemical Reaction Engineering Calcination reaction of limestone (CaCO₃ → CaO + CO₂) goes to completion in the rotary kiln, because

Chemical Reaction Engineering For the reversible reaction A ⇋ 2B, if the equilibrium constant K is 0.05 mole/litre; starting from initially 2 moles of A and zero moles of B, how many moles will be formed at equilibrium?

Chemical Reaction Engineering
If the catalyst pore size is small in comparison with the mean free path, collisions with the pore wall controls the process'. The diffusivity under this condition is called 'Knudsen diffusivity', which is affected by the

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

Chemical Reaction Engineering
The increase in the rate of reaction with temperature is due to

Chemical Reaction Engineering
Calcination reaction of limestone (CaCO₃ → CaO + CO₂) goes to completion in the rotary kiln, because

Chemical Reaction Engineering
For the reversible reaction A ⇋ 2B, if the equilibrium constant K is 0.05 mole/litre; starting from initially 2 moles of A and zero moles of B, how many moles will be formed at equilibrium?