The rate of the heterogenous catalytic reaction A ( g ) + B ( g ) C ( g ) is given by - r A = k . K A . p A . P B /(1 + K A . P A + K c . p c ), where K A and K c are the adsorption equilibrium constants. The rate controlling step for this reaction is

surface reaction between A in the gas phase and absorbed B .

surface reaction between absorbed A and absorbed B .

surface reaction between absorbed A and B in the gas phase.

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

1.	The rate of the heterogenous catalytic reaction A ( g ) + B ( g ) C ( g ) is given by - r A = k . K A . p A . P B /(1 + K A . P A + K c . p c ), where K A and K c 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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The rate of the heterogenous catalytic reaction A ( g ) + B ( g ) C ( g ) is given by - r A = k . K A . p A . P B /(1 + K A . P A + K c . p c ), where K A and K c are the adsorption equilibrium constants. The rate controlling step for this reaction is

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