A liquid mixture containing 35.0 mol% methanol and the remainder isopropanol is heated slowly in a vessel open to the atmosphere. Estimate the temperature at which the mixture begins to boil (a) when the barometric pressure is reported to be 28.8 inches of mercury, and (b) on a day when the barometric pressure is reported to be 31.0 inches of mercury. (Note, these are the extremes of barometric pressure recorded in Oklahoma). (c) If heat is supplied continuously, how will the liquid temperature and composition change with time? Sketch (qualitatively, no calculations) Temperature versus Time and XCH3OH (mole fraction methanol in the liquid) versus Time. (d) On the low pressure day, what is the liquid temperature when the liquid contains 10 mol% methanol?
A liquid mixture containing 35.0 mol% methanol and the remainder isopropanol is heated slowly in a vessel open to the atmosphere. Estimate the temperature at which the mixture begins to boil (a) when the barometric pressure is reported to be 28.8 inches of mercury, and (b) on a day when the barometric pressure is reported to be 31.0 inches of mercury. (Note, these are the extremes of barometric pressure recorded in Oklahoma). (c) If heat is supplied continuously, how will the liquid temperature and composition change with time? Sketch (qualitatively, no calculations) Temperature versus Time and XCH3OH (mole fraction methanol in the liquid) versus Time. (d) On the low pressure day, what is the liquid temperature when the liquid contains 10 mol% methanol?
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