For the non-catalytic reaction of particles with surrounding fluid, the time needed to achieve the same fractional conversion for particles of different but unchanging sizes is proportional to the square of particle diameter, when the __________ is the controlling resistance.

Chemical Reaction Engineering
For the non-catalytic reaction of particles with surrounding fluid, the time needed to achieve the same fractional conversion for particles of different but unchanging sizes is proportional to the square of particle diameter, when the __________ is the controlling resistance.

Either A, B or C

Chemical reaction

Film diffusion

Diffusion through ash layer

Either A, B or C

Chemical reaction

Film diffusion

Diffusion through ash layer

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Chemical Reaction Engineering
Which of the following chemical reactions will be favoured by low pressure ?

2HI ⇋ H₂ + I₂

N₂ + O₂ ⇋ 2NO

None of these

N₂O₂ ⇋ 2NO₂

2HI ⇋ H₂ + I₂

N₂ + O₂ ⇋ 2NO

None of these

N₂O₂ ⇋ 2NO₂

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Chemical Reaction Engineering
A multiple reaction may be classified as a __________ reaction.

Parallel or side

Mixed

Consecutive or side

All of these

Parallel or side

Mixed

Consecutive or side

All of these

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Chemical Reaction Engineering
The energy of activation of a chemical reaction

Both B and C

Is the minimum energy which the molecules must have before the reaction can take place

Is same as heat of reaction at constant pressure

Varies as fifth power of the temperature

Both B and C

Is the minimum energy which the molecules must have before the reaction can take place

Is same as heat of reaction at constant pressure

Varies as fifth power of the temperature

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Chemical Reaction Engineering
An isothermal irreversible reaction is being carried out in an ideal tubular flow reactor. The conversion in this case will __________ with decrease in space time.

Decrease

Remain unchanged

Increase exponentially

Increase

Decrease

Remain unchanged

Increase exponentially

Increase

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Chemical Reaction Engineering
The rate expression for a heterogenous catalytic reaction is given by, - rA = K.KA PA(1 + KA.PA + Kr.PR), where K is surface reaction rate constant and KA and KR are absorption equilibrium constants of A and R respectively. If KR PR >> (1 + KA PA), the apparent activation energy EA is equal to (given E is the activation energy for the reaction and ΔHR and ΔHA are the activation energies of adsorption of R and A)

E + ΔHA - ΔHR

ΔHA + ΔHR

E

E + ΔHA

E + ΔHA - ΔHR

ΔHA + ΔHR

E

E + ΔHA

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Chemical Reaction Engineering

Chemical Reaction Engineering Which of the following chemical reactions will be favoured by low pressure ?

Chemical Reaction Engineering A multiple reaction may be classified as a __________ reaction.

Chemical Reaction Engineering The energy of activation of a chemical reaction

Chemical Reaction Engineering An isothermal irreversible reaction is being carried out in an ideal tubular flow reactor. The conversion in this case will __________ with decrease in space time.

Chemical Reaction Engineering
Which of the following chemical reactions will be favoured by low pressure ?

Chemical Reaction Engineering
A multiple reaction may be classified as a __________ reaction.

Chemical Reaction Engineering
The energy of activation of a chemical reaction

Chemical Reaction Engineering
An isothermal irreversible reaction is being carried out in an ideal tubular flow reactor. The conversion in this case will __________ with decrease in space time.