Chemical Reaction

B.E.T. method can be used to determine the ___________________ of a porous catalyst?

Byadmin February 19, 2019August 23, 2021

B.E.T. method can be used to determine the ___________________ of a porous catalyst?

A. Solid density
B. Pore volume
C. Surface area
D. All A., B. and C.

Chemical Reaction

An endothermic aqueous phase first order irreversible reaction is carried out in an adiabatic plug flow reactor. The rate of reaction ?

An endothermic aqueous phase first order irreversible reaction is carried out in an adiabatic plug flow reactor. The rate of reaction ?

A. Is maximum at the inlet of the reactor
B. Goes through a maximum along the length of the reactor
C. Goes through a minimum along the length of the reactor
D. Is maximum at the exit of the reactor

Read More An endothermic aqueous phase first order irreversible reaction is carried out in an adiabatic plug flow reactor. The rate of reaction ?
Chemical Reaction

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

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

A. 2η
B. 0.5η
C. η/0.693
D. 0.693η

Read More A pulse tracer is introduced in an ideal CSTR (with a mean residence time I) 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

As the chemical reaction proceeds, the rate of reaction ___________________?

As the chemical reaction proceeds, the rate of reaction ___________________?

A. Increases
B. Decreases
C. Remain same
D. May increase or decrease depending on the type of reaction

Read More As the chemical reaction proceeds, the rate of reaction ___________________?
Chemical Reaction

The role of a catalyst in a chemical reaction is to change the__________________?

The role of a catalyst in a chemical reaction is to change the__________________?

A. Equilibrium constant
B. Activation energy
C. Final products
D. Heat of reaction

Read More The role of a catalyst in a chemical reaction is to change the__________________?
Chemical Reaction

For high conversion in a highly exothermic solid catalysed reaction, use a ______________ bed reactor?

For high conversion in a highly exothermic solid catalysed reaction, use a ______________ bed reactor?

A. Fixed
B. Fluidised bed reactor followed by a fixed
C. Fixed bed reactor followed by a fluidised
D. Fluidised

Read More For high conversion in a highly exothermic solid catalysed reaction, use a ______________ bed reactor?
Chemical Reaction

For the chemical reaction X → Y, it is observed that, on doubling the concentration of ‘X’, the reaction rate quadruples. If the reaction rate is proportional to Cx n, then what is the value of „n‟ ?

For the chemical reaction X → Y, it is observed that, on doubling the concentration of ‘X’, the reaction rate quadruples. If the reaction rate is proportional to Cx n, then what is the value of „n‟ ?

A. 1/4
B. 2
C. 4
D. 16

Read More For the chemical reaction X → Y, it is observed that, on doubling the concentration of ‘X’, the reaction rate quadruples. If the reaction rate is proportional to Cx n, then what is the value of „n‟ ?

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