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______________________?

Related Mcqs:

The rate expression for a heterogeneous catalytic reaction is given by, – rA = K.KA PA(1 + KA.PA + KR.PR), where K is surface reaction rate constant and KA and KR are absorption equilibrium constants of A and R respectively. If KR PR >> (1 + KA PA), the apparent activation energy EA is equal to (given E is the activation energy for the reaction and ΔHR and ΔHA are the activation energies of adsorption of R and A) ?

A. E B. E + ΔHA C. E + ΔHA – ΔHR) D. ΔHA + ΔHR...

Which of the following does not produce a change in the value of rate constant of a reaction ?

A. Pressure B. Temperature C. Concentration and catalyst D. None of these...

The ‘E’ curve for a non-ideal reactor defines the fraction of fluid having age between t and t + dt _____________________?

A. At the inlet B. At the outlet C. In the reactor D. Averaged over the inlet and outlet...

The reaction in which one of the products of reaction acts as a catalyst is called a/an ______________ reaction?

A. Biochemical B. Photochemical C. Catalytic D. Autocatalytic...

Equilibrium of a chemical reaction as viewed by kinetics is a ______________ state?

A. Dynamic steady B. Static steady C. Dynamic unsteady D. None of these...