22.1-4. equilibrium stage contact for gas–liquid system. a gas mixture at 2.026 × 10 5 pa total pressure containing air and so2 is brought into contact in a single-stage equilibrium mixer with pure water at 293 k. the partial pressure of so2 in the original gas is 1.52 × 10 4 pa. the inlet gas contains 5.70 total kg mol and the inlet water 2.20 total kg mol. the exit gas and liquid leaving are in equilibrium. calculate the amounts and compositions of the outlet phases. use equilibrium data from fig. 22.2-1. ans. xa1