A batch adiabatic reactor at an initial temperature of 373°K is being used for the reaction, A → B. Assume the heat of reaction is - 1kJ/mole at 373°K and heat capacity of both A and B to be constant and equal to 50J/mole.K. The temperature rise after a conversion of 0.5 will be

Chemical Reaction Engineering
A batch adiabatic reactor at an initial temperature of 373°K is being used for the reaction, A → B. Assume the heat of reaction is - 1kJ/mole at 373°K and heat capacity of both A and B to be constant and equal to 50J/mole.K. The temperature rise after a conversion of 0.5 will be

100°C

10°C

5°C

20°C

100°C

10°C

5°C

20°C

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Chemical Reaction Engineering
Design of heterogeous catalytic reactor involves consideration of __________ steps.

Only physical

Both A & B

Neither A nor B

Only chemical

Only physical

Both A & B

Neither A nor B

Only chemical

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Chemical Reaction Engineering
For a first order isothermal chemical reaction in a porous catalyst, the effectiveness factor is 0.3. The effectiveness factor will increase if the

Catalyst size is increased or the catalyst diffusivity is reduced

Catalyst size is increased or the catalyst diffusivity is increased

Catalyst size is reduced or the catalyst diffusivity is increased

Catalyst size is reduced or the catalyst diffusivity is reduced

Catalyst size is increased or the catalyst diffusivity is reduced

Catalyst size is increased or the catalyst diffusivity is increased

Catalyst size is reduced or the catalyst diffusivity is increased

Catalyst size is reduced or the catalyst diffusivity is reduced

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Chemical Reaction Engineering
A first order gaseous phase reaction is catalysed by a non-porous solid. The kinetic rate constant and the external mass transfer co-efficients are k and kg respectively. The effective rate constant (keff) is given by

keff = k + kg

keff = (kkg)1/2

1/keff = 1/k + 1/kg

keff = (k+ kg)/2

keff = k + kg

keff = (kkg)1/2

1/keff = 1/k + 1/kg

keff = (k+ kg)/2

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Chemical Reaction Engineering
If the time required for half change is inversely proportional to the square of initial concentration and the velocity depends on the units in which the concentration term is expressed, then the order of reaction is

1

0

3

2

1

0

3

2

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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.

390

290

490

190

390

290

490

190

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Chemical Reaction Engineering

Chemical Reaction Engineering Design of heterogeous catalytic reactor involves consideration of __________ steps.

Chemical Reaction Engineering For a first order isothermal chemical reaction in a porous catalyst, the effectiveness factor is 0.3. The effectiveness factor will increase if the

Chemical Reaction Engineering A first order gaseous phase reaction is catalysed by a non-porous solid. The kinetic rate constant and the external mass transfer co-efficients are k and kg respectively. The effective rate constant (keff) is given by

Chemical Reaction Engineering If the time required for half change is inversely proportional to the square of initial concentration and the velocity depends on the units in which the concentration term is expressed, then the order of reaction is

Chemical Reaction Engineering
Design of heterogeous catalytic reactor involves consideration of __________ steps.

Chemical Reaction Engineering
For a first order isothermal chemical reaction in a porous catalyst, the effectiveness factor is 0.3. The effectiveness factor will increase if the

Chemical Reaction Engineering
A first order gaseous phase reaction is catalysed by a non-porous solid. The kinetic rate constant and the external mass transfer co-efficients are k and kg respectively. The effective rate constant (keff) is given by

Chemical Reaction Engineering
If the time required for half change is inversely proportional to the square of initial concentration and the velocity depends on the units in which the concentration term is expressed, then the order of reaction is