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

Langmuir

None of these

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

Langmuir

None of these

There is no dynamic equilibrium between successive layer

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Chemical Reaction Engineering
Specific rate constant for a second order reaction

Depends on the nature of the reactants

Is independent of temperature

Both B and C

Varies with temperature

Depends on the nature of the reactants

Is independent of temperature

Both B and C

Varies with temperature

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Chemical Reaction Engineering
Fluidised bed reactor is characterised by

Very small pressure drop

Uniformity of temperature

Absence of continuous catalyst regeneration facility

Comparatively smaller equipment

Very small pressure drop

Uniformity of temperature

Absence of continuous catalyst regeneration facility

Comparatively smaller equipment

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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

m

m²

1/m

√m

m

m²

1/m

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Chemical Reaction Engineering
A reaction which is catalysed by an acid is also catalysed by any substance, which has a tendency to

Gain a proton

None of these

Lose a proton

Lose an electron

Gain a proton

None of these

Lose a proton

Lose an electron

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Chemical Reaction Engineering
An irreversible aqueous phase reaction, A + B → P, is carried out in an adiabatic mixed flow reactor. A feed containing 4kmole/m³ of each A and B enters the reactor at 8m³ /hr. If the temperature of the exit stream is never to exceed 390 K, what is the maximum inlet feed temperature allowed?(Data: Heat of reaction = - 50 kJ/mole, Density of the reacting mixture = 1000kg/m³, Specific heat of reacting mixture = 2kJ/kg.K)The above data can be assumed to be independent of temperature and composition.

490

190

290

390

490

190

290

390

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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 Specific rate constant for a second order reaction

Chemical Reaction Engineering Fluidised bed reactor is characterised by

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 A reaction which is catalysed by an acid is also catalysed by any substance, which has a tendency to

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
Specific rate constant for a second order reaction

Chemical Reaction Engineering
Fluidised bed reactor is characterised by

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
A reaction which is catalysed by an acid is also catalysed by any substance, which has a tendency to