The synthesis of ammonia proceeds according to N (g) + 3 H (g) → 2 NH (g), ΔH = –92…
CHEMISTRY · Subjective · AP · Chemistry · Thermodynamics and Electrochemistry · Thermodynamics and Electrochemistry
Problem
The synthesis of ammonia proceeds according to
N2(g) + 3 H2(g) → 2 NH3(g), ΔH = –92 kJ per mole of N2 reacted.
To maintain nearly isothermal reactor conditions, the process is to be coupled with the endothermic gas-phase dehydrogenation
C2H4(g) → C2H2(g) + H2(g), ΔH = +136 kJ per mole of C2H4 reacted.
Calculate the number of moles of C2H4 that must be dehydrogenated per mole of N2 consumed so that the combined net ΔH is approximately zero.