Question: n-Butane is separated from an equimolar methane/n-butane gas mixture by compression of the gas to pressure P at 40C. If 40% of (he feed on

n-Butane is separated from an equimolar methane/n-butane gas mixture by compression of the gas to pressure P at 40°C. If 40% of (he feed on a mole basis is condensed, what is pressure P (in hurl and what are the compositions of the resulting vapor and liquid phases?

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