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
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 reduced 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 increased or the catalyst diffusivity is reduced

Catalyst size is reduced 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

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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 = (kkg)1/2

keff = k + kg

1/keff = 1/k + 1/kg

keff = (k+ kg)/2

keff = (kkg)1/2

keff = k + kg

1/keff = 1/k + 1/kg

keff = (k+ kg)/2

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Chemical Reaction Engineering
The excess energy of the reactants required to dissociate into products is known as the __________ energy.

Threshold

Binding

Thermal

Activation

Threshold

Binding

Thermal

Activation

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Chemical Reaction Engineering
A balanced chemical reaction equation conforms to the law of

Avagadro's hypothesis

Conservation of mass

None ofthese

Gaseous volumes

Avagadro's hypothesis

Conservation of mass

None ofthese

Gaseous volumes

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Chemical Reaction Engineering
For reactions in parallel viz A → P (desired product) and A → Q (unwanted product), if the order of the desired reaction is higher than that of the undesired reaction, a

Tubular reactor is preferred over a single CSTR for high yield

Single CSTR is the most suitable

Both A and B

Batch reactor is preferred over a single CSTR for high yield

Tubular reactor is preferred over a single CSTR for high yield

Single CSTR is the most suitable

Both A and B

Batch reactor is preferred over a single CSTR for high yield

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Chemical Reaction Engineering
For identical flow rate, feed composition and for elementary first order reactions, 'N' equal sized mixed reactors in series with a total volume 'V' gives the same conversion as a single plug flow reactor of volume 'V' for constant density systems. This is true, when the value of 'N' is

1

≥1

∞

>1

1

≥1

∞

>1

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Chemical Reaction Engineering

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 The excess energy of the reactants required to dissociate into products is known as the __________ energy.

Chemical Reaction Engineering A balanced chemical reaction equation conforms to the law of

Chemical Reaction Engineering For reactions in parallel viz A → P (desired product) and A → Q (unwanted product), if the order of the desired reaction is higher than that of the undesired reaction, a

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
The excess energy of the reactants required to dissociate into products is known as the __________ energy.

Chemical Reaction Engineering
A balanced chemical reaction equation conforms to the law of

Chemical Reaction Engineering
For reactions in parallel viz A → P (desired product) and A → Q (unwanted product), if the order of the desired reaction is higher than that of the undesired reaction, a