We're going to find that the change in the boiling point Kb is going to be some constant K sub b, which is not to be confused with Henry's law's constant. 我们最后要得到沸点的改变,等于常数,不要和亨利定律的常数混淆。
Constant boiling distillation of alcohol referred the addition of the third substance into watered alcohol such as benzene, pen-tane and cyclohexane etc. to form water and the additive into another constant boiling substance to produce absolute alcohol through advanced volatilization of such formed substance. 酒精恒沸蒸馏是在有水酒精中加入第三种物质,如苯、戊烷、环己烷等,使水与添加物形成另一种恒沸物,并先行挥发,而得到无水酒精。
When the boiling heat transfer coefficient is almost constant when the evaporating temperature changes. 沸腾换热系数随蒸发温度变化几乎不变。