A first order reaction A → B occurs in an isothermal porous catalyst pellet of spherical shape. If the concentration of A at the centre of the pellet is much less than at the external surface, the process is limited by__________________?

Related Mcqs:

A first order reaction requires two equal sized CSTR. The conversion is____________________?

A. Less when they are connected in series B. More when they are connected in series C. More when they are connected in parallel D. Same whether they are connected in series or in parallel...

When a high liquid hold up is required in a reactor for gas liquid reaction, use ______________ column?

A. Packed B. Spray C. Tray D. Bubble...

In a consecutive reaction system of the given figure bellow, when E1 is much greater than E2, the yield of B increases with the____________________?

A. Increase of temperature B. Decrease of temperature C. Increase in initial concentration of A D. Decrease in initial concentration of A...

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 Chatelier’s principle)?

A. Decreases B. Increases C. Remains unaltered D. Changes unpredictably...

Carbon particles accumulated on the catalyst used in the gas oil cracking lies in the category of _____________________ poison?

A. Deposited B. Chemisorbed C. Selectivity D. Stability...