Project ForgeProcess Calculations
Vapor-Liquid Equilibrium
GATE 2017
Medium
On an ideal tray, vapor mole fractions and relative volatilities (vs. n-propane) are: Methane 0.12(α=10), Ethane 0.28(α=4), n-Propane 0.60(α=1). The mole fraction of n-propane in the liquid phase, rounded to 2 decimal places, is
0.88(± 0.02 accepted)
Explanation
xi∝yi/αi: Methane=0.012, Ethane=0.07, Propane=0.60; sum=0.682. x_propane=0.60/0.682=0.88.
Source: GATE CH 2017 (2017)
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