The rate of the heterogenous catalytic reaction A(g) + B(g) C(g) is g – McqOptions

MCQOPTIONS

1.	The rate of the heterogenous catalytic reaction A(g) + B(g) C(g) is given by -rA = k.KA.pA.PB/(1 + KA.PA + Kc.pc), where KA and Kc are the adsorption equilibrium constants. The rate controlling step for this reaction is
A.	absorption of A.
B.	surface reaction between absorbed A and absorbed B.
C.	surface reaction between absorbed A and B in the gas phase.
D.	surface reaction between A in the gas phase and absorbed B.
Answer» D. surface reaction between A in the gas phase and absorbed B.

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