A beaker filled with an equimolar liquid mixture of ethyl alcohol and ethyl acetate evaporates at O?C
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A beaker filled with an equimolar liquid mixture of ethyl alcohol and ethyl acetate evaporates at O?C into still air at 101 kPa (1 atm) total pressure. Assuming Raoult's law applies, what will be the composition of the liquid remaining when half the original ethyl alcohol has evaporated, assuming that each component evaporates independently of the other? Also assume that the liquid is always well mixed. The following data are available:
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Vapor Pressure, kPa at 0°C Diffusivity in Air m*ls 6.45 x 10-6 9.29 x 10-6 Ethyl acetate (AC) Ethyl alcohol (AL) 3.23 1,62
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All of the masstransfer resistance is in the still air layer in the beaker which increases in hei...View the full answer
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