Which of the following is a controlling factor in very fast heterogeneous reaction ?

Related Mcqs:

In a first order reaction, the time required to reduce the concentration of reactant from 1 mole/litre to 0.5 mole/litre will be ______________ that required to reduce it from 10 moles/litre to 5 moles/litre in the same volume ?

A. More than B. Less than C. Same as D. Data insufficient; can’t be predicted...

In case of calcination of limestone, CaCO3 CaO + CO2, the addition of more of CaO will result in _______________ in the concentration of CO2?

A. No change B. Increase C. Decrease D. Unpredictable from the data...

For a heterogeneous catalytic reaction, A + B → C, with equimole feed of A and B, the initial rate – rA0 is invariant with total pressure. The rate controlling step is______________________?

A. Surface Kc/(1 + TS) reaction between absorbed A and B in the gas phase B. Surface reaction between absorbed A and absorbed B C. Surface reaction between A in the gas phase and absorbed B D. Desorption of C...

The dispersion number of perfect mixed flow is__________________?

A. 0 B. > 150 C. ∞ D. < 2100...

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

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