Catalyst carriers___________________?

Byadmin February 23, 2019August 23, 2021

Catalyst carriers___________________?

A. Have very high selectivity
B. Increase the activity of a catalyst
C. Provide large surface area with a small amount of active material
D. Inhibit catalyst poisoning

Chemical Reaction

Half-life period for a first order reaction is _____________ the initial concentration of the reactant?

Half-life period for a first order reaction is _____________ the initial concentration of the reactant?

A. Directly proportional to
B. Inversely proportional to
C. Independent of
D. None of these

Read More Half-life period for a first order reaction is _____________ the initial concentration of the reactant?
Chemical Reaction

BET apparatus is used to determine the ___________________?

BET apparatus is used to determine the ___________________?

A. Specific surface of a porous catalyst
B. Pore size distribution
C. Pore diameter
D. Porosity of the catalyst bed

Read More BET apparatus is used to determine the ___________________?
Chemical Reaction

In a CSTR _______________ varies with time ?

In a CSTR _______________ varies with time ?

A. Reaction rate
B. Concentration
C. Both A. & B.
D. Neither A. nor B.

Read More In a CSTR _______________ varies with time ?
Chemical Reaction

‘n’ number of plug flow reactors (P.F.R) in series with a total volume ‘V’ gives the same conversion as one P.F.R. of volume________________?

‘n’ number of plug flow reactors (P.F.R) in series with a total volume ‘V’ gives the same conversion as one P.F.R. of volume________________?

A. V/n
B. V
C. V.n
D. 1/V

Read More ‘n’ number of plug flow reactors (P.F.R) in series with a total volume ‘V’ gives the same conversion as one P.F.R. of volume________________?
Chemical Reaction

For a zero order chemical reaction, the__________________?

For a zero order chemical reaction, the__________________?

A. Half life period is directly proportion to the initial concentration of the reactants
B. Plot of products concentration with time is a straight line through the origin
C. Products concentration increases linearly with time
D. All A., B. and C.

Read More For a zero order chemical reaction, the__________________?
Chemical Reaction

In case of a _____________ reactor, the composition in the reactor and at the exit of the reactor is the same ?

In case of a _____________ reactor, the composition in the reactor and at the exit of the reactor is the same ?

A. Semi-batch
B. Tubular
C. Batch
D. Back-mix

Read More In case of a _____________ reactor, the composition in the reactor and at the exit of the reactor is the same ?

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