Bulk diffusion in catalyst pore __________ with increase in pressure.

Concentration of the limiting reactant (with initial concentration of a moles/litre) after time t is (a-x). Then 't' for a first order reaction is given by

Backmixing is most predominant in

Collision theory gives the rate constant for bimolecular reaction as

Half life period of a first order irreversible reaction A B is

What is the dispersion number for a plug flow reactor ?

Pick out the correct statement.

With increase in the space time of an irreversible isothermal reaction being carried out in a P.F. reactor, the conversion will

With an increase in pressure in gaseous phase chemical reactions, the fractional conversion __________ when the number of moles decreases.

Which of the following factors control the design of a fluid-solid reactor ?

If helium is introduced in a reactor containing O₂, SO₂ and SO₃ at equilibrium, so that total pressure increases while volume and temperature remains constant. In this case the dissociation of SO₃ (as per Le Chatlier principle)

The half life period 't' of a zero order reaction, , is equal to

In case of a/an __________ chemical reaction, conversion increases with the rise in temperature.

The catalyst in a first order chemical reaction changes the

Half life period of a first order irreversible reaction A B is

Half-life period for a first order reaction is __________ the initial concentration of the reactant.

With increase in the space time of an irreversible isothermal reaction being carried out in a P.F. reactor, the conversion will

The unit of frequency factor in Arhenious equation is

Calcination reaction of limestone (CaCO₃ CaO + CO₂) goes to completion in the rotary kiln, because

A Catalyst

A gaseous reactant is introduced in a mixed reactor of 3 litres volume at the rate of 1 litre/second. The space time is __________ seconds.

A gaseous reactant is introduced in a mixed reactor of 3 litres volume at the rate of 1 litre/second. The space time is __________ seconds.

The catalytic converter for conversion of SO₂ to SO₃ by contact process should have a feed with SO₂ content between

If the pore diffusion controls in a catalytic reaction, the apparent activation energy E_a is equal to

A space velocity of 5 hr^-1 means that

If the pore diffusion controls in a catalytic reaction, the apparent activation energy E_a is equal to

Carbon particles accummulated on the catalyst used in the gas oil cracking lies in the category of __________ poison.

With increase in the order of reaction (for all positive reaction orders), the ratio of the volume of mixed reactor to the volume of plug flow reactor (for identical feed composition, flow rate and conversion)

Reaction of benzene with chlorine gas to produce tri-chlorobenzene exemplifies a/an __________ reaction.

The temperature dependence of reaction rate constant (K) by Arhenius law is given by

Calcination reaction of limestone (CaCO₃ CaO + CO₂) goes to completion in the rotary kiln, because

For a packed bed reactor; the presence of a long tail in the residence time distribution curve is an indication of

For a packed bed reactor; the presence of a long tail in the residence time distribution curve is an indication of

The enzyme which can catalyse the conversion of glucose to ethyl alcohol is

Consider a reversible exothermic reaction in a plug flow reactor. The maximum and minimum permissible temperatures are T_max and T_min respectively. Which of the following temperature (T) profiles will require the shortest residence time to achieve the desired conversion.

The space time is equivalent to the holding time in a steady state mixed reactor for

A space velocity of 5 hr^-1 means that

Concentration of the limiting reactant (with initial concentration of a moles/litre) after time t is (a-x). Then 't' for a first order reaction is given by

If the pore diffusion controls in a catalytic reaction, the apparent activation energy E_a is equal to

Reaction of benzene with chlorine gas to produce tri-chlorobenzene exemplifies a/an __________ reaction.

Concentration of the limiting reactant (with initial concentration of a moles/litre) after time t is (a-x). Then 't' for a first order reaction is given by

Reaction of benzene with chlorine gas to produce tri-chlorobenzene exemplifies a/an __________ reaction.

Consider a reversible exothermic reaction in a plug flow reactor. The maximum and minimum permissible temperatures are T_max and T_min respectively. Which of the following temperature (T) profiles will require the shortest residence time to achieve the desired conversion.

The reaction rate constants at two different temperature T₁ and T₂ are related by

Which of the following is a controlling factor in very fast heterogeneous reaction ?

Which of the following is not a theory of homogeneous reaction?

In case of physical adsorption, the heat of adsorption is of the order of __________ kcal/kg.mole.

The half life period of a first order reaction is given by (where, K = rate constant. )

Enzymes are destroyed, when the

Which of the following is not a theory of homogeneous reaction?