If Thiele modulus is __________ , then the pore diffusion resistance in a catalyst may be considered as negligible.

Chemical Reaction Engineering
If Thiele modulus is __________ , then the pore diffusion resistance in a catalyst may be considered as negligible.

< 0.5

0

∞

> 0.5

< 0.5

0

∞

> 0.5

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Chemical Reaction Engineering
During manufacture of H₂SO₄, the oxidation of SO₂ to SO₃ by oxygen is an en- dothermic reaction. The yield of SO₃ will be maximised, if the

Temperature is increased and pressure is reduced

Temperature is increased

Temperature is reduced and pressure is increased

Pressure is reduced

Temperature is increased and pressure is reduced

Temperature is increased

Temperature is reduced and pressure is increased

Pressure is reduced

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Chemical Reaction Engineering
In the fluid catalytic cracker (FCC), the cracking reaction is (i) and the regeneration is __ (ii)

(i) endothermic (ii) enodthermic

(i) exothermic (ii) exothermic

(i) exothermic (ii) endothermic

(i) endothermic (ii) exothermic

(i) endothermic (ii) enodthermic

(i) exothermic (ii) exothermic

(i) exothermic (ii) endothermic

(i) endothermic (ii) exothermic

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Chemical Reaction Engineering
Rate constant for a first order reaction does not depend upon reaction time, extent of reaction and the initial concentration of reactants ; but it is a function of reaction temperature. In a chemical reaction, the time required to reduce the concentration of reactant from 100 gm moles/litre to 50 gm moles/litre is same as that required to reduce it from 2 gm moles/litre to 1 gm mole/litre in the same volume. Then the order of this reaction is

1

3

2

0

1

3

2

0

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Chemical Reaction Engineering
In a chemical reaction, __________ are conserved.

Both B & C

Ions

Masses

Atoms

Both B & C

Ions

Masses

Atoms

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Chemical Reaction Engineering
For nearly isothermal operation involving large reaction time in a liquid-phase reaction, the most suitable reactor is a __________ reactor.

Stirred tank

Fixed bed

Tubular flow

Batch

Stirred tank

Fixed bed

Tubular flow

Batch

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Chemical Reaction Engineering

Chemical Reaction Engineering If Thiele modulus is __________ , then the pore diffusion resistance in a catalyst may be considered as negligible.

Chemical Reaction Engineering During manufacture of H₂SO₄, the oxidation of SO₂ to SO₃ by oxygen is an en- dothermic reaction. The yield of SO₃ will be maximised, if the

Chemical Reaction Engineering In the fluid catalytic cracker (FCC), the cracking reaction is __________ (i) and the regeneration is ____________ (ii)

Chemical Reaction Engineering In a chemical reaction, __________ are conserved.

Chemical Reaction Engineering For nearly isothermal operation involving large reaction time in a liquid-phase reaction, the most suitable reactor is a __________ reactor.

Chemical Reaction Engineering
If Thiele modulus is __________ , then the pore diffusion resistance in a catalyst may be considered as negligible.

Chemical Reaction Engineering
During manufacture of H₂SO₄, the oxidation of SO₂ to SO₃ by oxygen is an en- dothermic reaction. The yield of SO₃ will be maximised, if the

Chemical Reaction Engineering
In the fluid catalytic cracker (FCC), the cracking reaction is (i) and the regeneration is __ (ii)

Chemical Reaction Engineering
In a chemical reaction, __________ are conserved.

Chemical Reaction Engineering
For nearly isothermal operation involving large reaction time in a liquid-phase reaction, the most suitable reactor is a __________ reactor.