If pore diffusion is the controlling step in a solid catalysed reaction, the catalyst___________________?

Related Mcqs:

Catalyst is a substance, which ________________ chemical reaction?

A. Increases the speed of a B. Decreases the speed of a C. Can either increase or decrease the speed of a D. Alters the value of equilibrium constant in a reversible...

Promoter_____________________?

A. Initiates a chemical reaction and is a catalyst by itself B. Alters the position of equilibrium in a reversible reaction C. Increases the number of active centres by increasing the unevenness of catalyst surface and by creating discontinuities in the crystals D. All A., B. and C....

For a _____________ order reaction, the units of rate constant and rate of reaction are the same ?

A. Zero B. First C. Second D. Fractional...

A rise in temperature ______________________?

A. Normally tends to increase the reaction rate B. Does not affect a catalysed reaction C. Does not affect photo-chemical reaction rates D. All A., B. and C....

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

A. Increases B. Decreases C. Remain unaffected D. Unpredictable from the data...