Chemistry

Problem

An industrial plant wishes to maximize the production rate and equilibrium yield of

\text{NH}_3

for the reaction shown below while maintaining safe operating costs.

\text{N}_2(g)+3\text{H}_2(g)\rightleftharpoons 2\text{NH}_3(g)\quad \Delta H^\circ_{rxn}=-92\,\text{kJ mol}^{-1}

Four potential sets of operating conditions are being considered. I. 200 atm, 750 K, iron‐based catalyst II. 200 atm, 500 K, iron‐based catalyst III. 50 atm, 500 K, iron‐based catalyst IV. 50 atm, 750 K, iron‐based catalyst Which set of conditions offers the best compromise between a high equilibrium mole fraction of

\text{NH}_3

and a commercially acceptable reaction rate? a) I only b) III only c) II only d) IV only

Browse the problem library