摩尔分数或比率,但它是有单位的。
这是告诉我们,液相摩尔分数的曲线。
So this is the one that's showing us the mole fraction in the liquid phase.
也就是,摩尔分数不再是,压强的函数。
Namely, instead of showing the mole fractions as a function of the pressure.
所以在气相中,我们有摩尔分数yA和。
考虑A和,在液态以一定的摩尔分数混合。
B We're going to have a molar fraction in the liquid phase for a and B.
在气体中是yA和,这是气体中的摩尔分数。
yB And yA and yB in the gas phase, the mole fractions in the gas phase.
直接读出来,可得是xB,是液相摩尔分数。
So that means just reading off it, this is xB, that's the liquid mole fraction.
当然,在极限处,两个摩尔分数分别是零和一。
Of course, at the limits they're still, both mole fractions they're zero and one.
如果我们到达那,它告诉了我们气相的摩尔分数。
And if we go over here, this is telling us about the mole fraction in the gas phase.
溶质的蒸汽压,和溶液中溶质的摩尔分数成正比。
That the vapor pressure of the solute is related to the mole fraction in the solution.
现在,当然,由于这是摩尔分数,它总是处于零到一之间。
Now, of course, since this is a mole fraction, it's always between zero and one.
如果你看,好,现在我们也可以确定,气相中的摩尔分数。
If you look and see, well, now we should be able to determine the mole fraction in the gas as well.
我们援引了摩尔分数的道尔顿定律,要服从质量守恒定律。
We invoke Dalton's Law of molar proportions, we write it subject to conservation of mass.
且疏水单元摩尔分数越高,盐增黏效应越显著。
The higher mole fraction of hydrophobe, the stronger viscosity enhancement effect.
或者说如果你知道A的摩尔分数,和温度,你就知道了压强。
Or if you know just the molar fraction of a, and the temperature, then you know the pressure above.
对于任一摩尔分数,去预计它穿越相图,会做什么并不容易。
It's not easy to calculate a priori what it's going to do all the way across the phase diagram for any mole fraction.
失活树脂用摩尔分数为3.5%的硫酸溶液再生。
Deactive resin is regenerated with 3.5% (mol) sulfuric acid solution.
这意味着我们可以用,之前压强摩尔分数,相图里类似的方法。
That means I could follow the same sort of procedure that I indicated before when we looked at the pressure mole fraction phase diagram.
然后我们需要知道,总摩尔数,所以我们要计算,摩尔比摩尔分数。
And then we're going to need the total number of moles, because we're going to be doing mole ratios, mole fractions.
任何时候的摩尔分数是n减,除以总摩尔数,就是我们计算的n加。
x So the mole fraction at any time is n minus x divided by the total number of moles, x which we just calculated as n plus x.
约束条件是,所有摩尔分数之和等于1。,这就是摩尔分数的意义。
The constraint is that the sum of all the mole factions has to be equal to one That's what it is, to be a mole fraction.
现在,我们画相同的相图,但是不是压强和摩尔分数,而是温度的相图。
Now, you can draw the same diagram in, instead of pressure, mole fraction, you can draw the same diagram in terms of temperature.
所以如果我们把平衡常数写作,摩尔分数的函数,我们需要知道摩尔分数。
So if we're going to be writing our equilibrium constant in terms of mole fractions, we're going to need mole fractions.
我们从这一点开始,因为气态的摩尔分数不变,我们从之前相同的数字开始。
And the point is, now we're going to start, since the mole fraction in the gas phase that we're starting from is the same number as this was.
用单纯形优化法,选用摩尔分数目标函数求出了相应的模型参数。
NRTL model was used to correlate and predict the LLE data, and parameters of the model were obtained by using simplex method with objective function of mole fraction.
用单纯形优化法,选用摩尔分数目标函数求出了相应的模型参数。
NRTL model was used to correlate and calculate LLE data of system and model 's parameters were obtained by using of simplex optimization method with objective function of mole fraction.
汽相摩尔分数的实验值和计算值的平均相对偏差均小于0.78%。
Average relative deviations between calculated values and experimental data of gas phase mole fraction were all less than 0.78%.
用单纯形优化法,选用摩尔分数的目标函数求出了相应的模型参数。
The NRTL model was used to correlate and predict the LLE data of system and obtained the model's parameters by using of simplex method with the objective function of mole fraction.
它看起来或许不像这样,因为它包含了很多摩尔分数,当然它看起来不像有单位的。
It may not look like it because it's a bunch of mole fractions, and it certainly doesn't look like it has any units.
分析了该树脂的溶胶、凝胶质量分数,羧酸根(—COOH)的摩尔分数。
The percentage composition of colloidal sol-gel and molar percentage of carboxyl group(—COOH) of the resin were analyzed.
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