Effectiveness factor (E) of a catalyst pellet is defined as, E = (actual rate within pore of catalyst/rate if notsnowed by pore diffusion) Effectiveness factor for a first order reaction is given by (where, T = Thiele modulus)

Chemical Reaction Engineering
Effectiveness factor (E) of a catalyst pellet is defined as, E = (actual rate within pore of catalyst/rate if notsnowed by pore diffusion) Effectiveness factor for a first order reaction is given by (where, T = Thiele modulus)

Tan hT/tan T

Tan T/T

Tan hT/T

None of these

Tan hT/tan T

Tan T/T

Tan hT/T

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

Blood

Saliva

Gland

Intestine

Blood

Saliva

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Chemical Reaction Engineering
Fractional conversion __________ with increase in pressure for ammonia synthesis reaction i.e., N₂ + 3H₂ ⇋ 2NH₃.

Decreases

Remains unchanged

Increases

Unpredictable from the data

Decreases

Remains unchanged

Increases

Unpredictable from the data

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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) decreases (ii) decreases

(i) increases (ii) decreases

(i) increases (ii) increases

(i) decreases (ii) increases

(i) decreases (ii) decreases

(i) increases (ii) decreases

(i) increases (ii) increases

(i) decreases (ii) increases

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Chemical Reaction Engineering
The exit age distribution curve E(t) for an ideal CSTR with the average residence time, τ, is given by

1 - (e-t/τ/T)

E-t/τ

1 - e-t/τ

E-t/τ/T

1 - (e-t/τ/T)

E-t/τ

1 - e-t/τ

E-t/τ/T

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Chemical Reaction Engineering
For a heterogeneous catalytic reaction

Free energy of activation is lowered in the presence of catalyst, which remains unchanged at the end of reaction

A relatively small amount of catalyst can cause the conversion of large amount of reactants which does not mean that catalyst concentration is important

The surface of the catalyst does not play an important role during reaction

The catalyst does not form an intermediate complex with the reactant

Free energy of activation is lowered in the presence of catalyst, which remains unchanged at the end of reaction

A relatively small amount of catalyst can cause the conversion of large amount of reactants which does not mean that catalyst concentration is important

The surface of the catalyst does not play an important role during reaction

The catalyst does not form an intermediate complex with the reactant

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Chemical Reaction Engineering

Chemical Reaction Engineering Effectiveness factor (E) of a catalyst pellet is defined as, E = (actual rate within pore of catalyst/rate if notsnowed by pore diffusion) Effectiveness factor for a first order reaction is given by (where, T = Thiele modulus)

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 Fractional conversion __________ with increase in pressure for ammonia synthesis reaction i.e., N₂ + 3H₂ ⇋ 2NH₃.

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 The exit age distribution curve E(t) for an ideal CSTR with the average residence time, τ, is given by

Chemical Reaction Engineering For a heterogeneous catalytic reaction

Chemical Reaction Engineering
Effectiveness factor (E) of a catalyst pellet is defined as, E = (actual rate within pore of catalyst/rate if notsnowed by pore diffusion) Effectiveness factor for a first order reaction is given by (where, T = Thiele modulus)

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
Fractional conversion __________ with increase in pressure for ammonia synthesis reaction i.e., N₂ + 3H₂ ⇋ 2NH₃.

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
The exit age distribution curve E(t) for an ideal CSTR with the average residence time, τ, is given by

Chemical Reaction Engineering
For a heterogeneous catalytic reaction