Chemical Reaction Engineering
A Catalyst

Changes the equilibrium constant of the reaction
Increases the equilibrium concentration of the product
Shortens the time to reach the equilibrium
None of these

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Chemical Reaction Engineering
For a heterogenous 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

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

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