Virifugo is a thermodynamic calculator suite for chemical engineering students and professionals who work with vapour–liquid equilibria and virial equations of state. Compute saturated vapour fugacity coefficients, second virial coefficients for binary mixtures , and multi-parameter vapour fugacity from saturated pressure, temperature, mole fractions, and cross virial terms—with clear on-screen formulas and instant animated results. Log lab observations in the built-in Field Journal, including sample ID, phase envelope region, compressibility factor , activity coefficient , and excess Gibbs energy , so your calculations and field notes stay in one place. Designed with a clean sunshine interface for fast, focused work in class, on the bench, or in the field.
