the molar composition of a mixture is 80% hexane and 20% pentane. Use the phase
ID: 786152 • Letter: T
Question
the molar composition of a mixture is 80% hexane and 20% pentane. Use the phase diagram above to estimate the compostion of the vapor over the liquid. This vapor is condensed and the resulting liquid is heated. What is the composition of the vapor above the second liquid?
the molar composition of a mixture is 80% hexane and 20% pentane. Use the phase diagram above to estimate the composition of the vapor over the liquid. This vapor is condensed and the resulting liquid is heated. What is the composition of the vapor above the second liquid?Explanation / Answer
The composition of vapour can be estimated by taking the point L1 on the lower curve with mole fraction of hexane = 0.8
Then draw a line parallel to x axis and where it meet the upper curve gives us the point V1 .Coressponding to V1 we get composition Hexane = 0.6 Pentane = 0.4 in vapour
For composition of vapour over second liquid we draw a line parallel to y-axis and get point L2 and draw another line parallel to x-axis and get point V2 and we get HEXANE = 0.35 AND PENTANE = 1-0.35 = 0.65
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