Chemical Reaction Engineering
In the gaseous phase ammonia formation reaction (N₂ + 3H₂ ⇋ 2NH₃), the value of the equilibrium constant depends on the

Initial concentration of N₂ and H₂
Volume of the reactor
Temperature
Total pressure of the system

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Chemical Reaction Engineering
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 isA. absorption of A.

Surface reaction between absorbed A and absorbed B
Absorption of A
Surface reaction between absorbed A and B in the gas phase
Surface reaction between A in the gas phase and absorbed B

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