Mixture adsorption equilibria predicted from two pure-component isotherms
(Myers & Prausnitz 1965): equal spreading pressures ψ1(p₁⁰) = ψ2(p₂⁰)
with Pyi = xipi0. Spreading pressures are analytic for most models;
the solver bisects a strictly monotone function of x1, so the solution is unique and always found.
Hover the heatmap to inspect any (P, y1); click to pin.