Millikan, Robert Andrews, Gale, Henry Gordon · Boston : Ginn and Co. · leaf 214
try it is necessary that theevaporation take place at a low temperature, so that thesugar may not be scorched. Hence the boiler is kept par-tially exhausted by means of an air pump, thus enablingthe solution to boil at considerably reduced temperatures. 229. Fractional distillation. When both of… … Fig. 180. Distillation 186 CHANGE OF STATE vapor pressure, will predominate. Hence, if we have in B(Fig. 180) a solution consisting of 50% alcohol and 50%water, it is clear that we can obtain m P, by evaporatingand condensing, a solution containing a much larger percent-age of alcohol. By repeating…
Physics
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