Equilibrium reactor simulation

1 inlet -> 1 outlet (Keq)

Governing equations

The exact equations the solver works for a equilibrium reactor — the same math shown in the app's "Theory" panel, not a black box.

\prod_i a_i^{\nu_i} = K_{eq}(T)

\ln(K_{eq}/K_{ref}) = -\tfrac{\Delta H}{R}(1/T-1/T_{ref})

$a_i$: activity of species i (partial pressure or concentration basis)
$\nu_i$: stoichiometric coefficient — negative for reactants, so the product forms a ratio
$K_{eq}(T)$: equilibrium constant at the reaction temperature — the ceiling conversion can approach but never pass
$K_{ref}$: equilibrium constant at the reference temperature
$\Delta H$: heat of reaction [J/mol] — its sign is why heating helps an endothermic reaction and hurts an exothermic one (van 't Hoff)
$R$: gas constant
$T, T_{ref}$: reaction and reference temperatures [K]

stoichiometry, Keq (or Keq_ref + T_ref + heat_of_reaction for van't Hoff); optional basis 'mole_fraction'|'partial_pressure', temperature [K]