Chemical Reaction

A second order reaction of the form A + B → C is called a pseudo-first order reaction, when____________________?

Byadmin February 20, 2019August 23, 2021

A second order reaction of the form A + B → C is called a pseudo-first order reaction, when____________________?

A. CA0 = CB0
B. CA0 > CB0
C. CB0 > CA0
D. CB0 ≥ CB0

Chemical Reaction

If the pore diffusion controls in a catalytic reaction, the apparent activation energy Ea is equal to___________________?

If the pore diffusion controls in a catalytic reaction, the apparent activation energy Ea is equal to___________________?

A. The intrinsic activation energy E
B. (E + ED) where ED is activation due to diffusion
C. (E + ED)/2
D. ED/2

Read More If the pore diffusion controls in a catalytic reaction, the apparent activation energy Ea is equal to___________________?
Chemical Reaction

For a heterogeneous catalytic reaction____________________?

For a heterogeneous catalytic reaction____________________?

A. Free energy of activation is lowered in the presence of catalyst, which remains unchanged at
the end of reaction
B. A relatively small amount of catalyst can cause the conversion of large amount of reactants
which does not mean that catalyst concentration is important
C. The catalyst does not form an intermediate complex with the reactant
D. The surface of the catalyst does not play an important role during reaction

Read More For a heterogeneous catalytic reaction____________________?
Chemical Reaction

The residence time distribution of an ideal CSTR is _____________________?

The residence time distribution of an ideal CSTR is _____________________?

A. (1/η) exp (-t/η)
B. η exp (-t/η)
C. exp (-t/η)
D. (1/η) (-t/η)

Read More The residence time distribution of an ideal CSTR is _____________________?
Chemical Reaction

In a/an _____________ vessel, the fluid enters and leaves following plug flow?

In a/an _____________ vessel, the fluid enters and leaves following plug flow?

A. Open
B. Closed
C. Open-closed
D. Close-opened

Read More In a/an _____________ vessel, the fluid enters and leaves following plug flow?
Chemical Reaction

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

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

A. 2-5 %
B. 7-10 %
C. 12-15 %
D. 20-25 %

Read More The catalytic converter for conversion of SO2 to SO3 by contact process should have a feed with SO2 content between___________________?
Chemical Reaction

The rate equation for the reaction represented by as shown in the bellow figure, is given by – rx = K1 . Cx/(1 + K2 Cx). At high value of Cx (i.e.., K2Cx > > 1), the order of the reaction and the rate constant are respectively___________________?

The rate equation for the reaction represented by as shown in the bellow figure, is given by – rx = K1 . Cx/(1 + K2 Cx). At high value of Cx (i.e.., K2Cx > > 1), the order of the reaction and the rate constant are respectively___________________?

A. Zero order & K1/K2
B. Zero order & K1
C. First order & K1
D. First order & K1/K2

Read More The rate equation for the reaction represented by as shown in the bellow figure, is given by – rx = K1 . Cx/(1 + K2 Cx). At high value of Cx (i.e.., K2Cx > > 1), the order of the reaction and the rate constant are respectively___________________?

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