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/T

None of these

Tan hT/tan T

Tan T/T

Tan hT/T

None of these

Tan hT/tan T

Tan T/T

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Chemical Reaction Engineering
Most important characteristics of gas-liquid reactors are the

Specific inter-facial area

None of these

Both A and B

Liquid hold-up

Specific inter-facial area

None of these

Both A and B

Liquid hold-up

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Chemical Reaction Engineering
A pulse tracer is introduced in an ideal CSTR (with a mean residence time ι) at time, t = 0. The time taken for the exit concentration of the tracer to reach half of its initial value will be

2τ

τ/0.693

0.693τ

0.5τ

2τ

τ/0.693

0.693τ

0.5τ

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Chemical Reaction Engineering
The most suitable reactor for carrying out an auto-thermal reaction is a

Batch reactor

CSTR

Plug-flow reactor

Semi-batch reactor

Batch reactor

CSTR

Plug-flow reactor

Semi-batch reactor

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Chemical Reaction Engineering
The time needed to achieve the same fractional conversion for particles of different sizes (d) when chemical reaction controls, is proportional to

√d

D

D1.5

D2

√d

D

D1.5

D2

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Chemical Reaction Engineering
Collision theory gives the rate constant for bimolecular reaction as

None of these

K α √T.e-E/RT

K α e-E/RT

K α eE/RT

None of these

K α √T.e-E/RT

K α e-E/RT

K α eE/RT

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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 Most important characteristics of gas-liquid reactors are the

Chemical Reaction Engineering A pulse tracer is introduced in an ideal CSTR (with a mean residence time ι) at time, t = 0. The time taken for the exit concentration of the tracer to reach half of its initial value will be

Chemical Reaction Engineering The most suitable reactor for carrying out an auto-thermal reaction is a

Chemical Reaction Engineering The time needed to achieve the same fractional conversion for particles of different sizes (d) when chemical reaction controls, is proportional to

Chemical Reaction Engineering Collision theory gives the rate constant for bimolecular reaction as

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
Most important characteristics of gas-liquid reactors are the

Chemical Reaction Engineering
A pulse tracer is introduced in an ideal CSTR (with a mean residence time ι) at time, t = 0. The time taken for the exit concentration of the tracer to reach half of its initial value will be

Chemical Reaction Engineering
The most suitable reactor for carrying out an auto-thermal reaction is a

Chemical Reaction Engineering
The time needed to achieve the same fractional conversion for particles of different sizes (d) when chemical reaction controls, is proportional to

Chemical Reaction Engineering
Collision theory gives the rate constant for bimolecular reaction as