So we have total pressure in front.
总压强在前面。
It's a function of the total pressure.
它是总压强的函数。
So there's our total pressure here.
所以这就是我们的总压强。
Total pressure is going to look the same.
总压强看起来是一样的。
So this is the total pressure of a and B.
这是A和B的总压强。
But it's a function of the total pressure.
但是这个分压是总压强的函数。
And this is where the total pressure comes in.
这是总压强出现的地方。
I want p, total pressure, as a function of yB.
我想知道p，总压强，作为yB的函数。
This is not, there's no total pressure here.
这不是，这里没有总压强。
And the total pressure is given by the piston here.
总的压强由，活塞给出。
And I'm telling you what the total pressure is.
我能告诉你总压强是多少。
I've got a at one bar here, total pressure of one bar.
一巴的A在这，总压强是一巴。
Then on the y axis, I'm going to plot the total pressure.
我利用y轴表示总压强。
So, if we start at one, and now there's some total pressure.
所以，如果从第一点开始，有一定的总压强。
This is just a number that doesn't care what the total pressure is.
这是一个与，总压强无关的数这。
You have deviations from the ideal case, in the total pressure.
总的压强，偏离理想情况。
It's the molar fraction of B in the gas phase times the total pressure.
这分压等于气相中b的摩尔分数，乘以总压强。
Trying to see how the partial pressure of a changes with the total pressure.
现在看看分压如何，随着总压强变化。
And then we plug in the number 0.139 times the total pressure up there is 0.7.
然后我们用0。，乘以总气压0。7巴。
The only way, the only place, where the total pressure comes in, is right here.
唯一的方法唯一的地方，总压强能够出现的是这儿。
We plug in all the numbers, and we get that the total pressure is now 0.685 bar.
把这些数都代入方程，总气压等于0。685巴。
In other words, the total pressure is bigger than in the ideal solution case.
换句话说，总体压强，比理想情况的大。
Are we going to try to figure out how the total pressure above the solution changes.
我们能不能得到溶液上的总气压，是如何变化的。
And since both partial pressures are bigger, the total pressure has to be bigger.
由于两个分压都变大了，总体的压强也要变大。
I'm going to have the total pressure is going to be the partial pressure of the water.
我先考虑总压强，等于水的蒸汽压的情况。
So I'm going to find the total pressure as a function of the composition in the gas phase.
我想找到总压强作为，气相中组分的函数。
YB Is going to be answer to part b, given these two molar fractions and the total pressure.
等于0。139,so,yB,is, equal,to, 0。139。，这是成分b的答案，我们可以从这两个摩尔分数和总气压算出来。
I'm going to go to the second one, which is the effect of the total pressure on the reaction.
来看第二个，总压强对反应的影响。
This tells me what happens at equilibrium to the amount of NO2 as I change the total pressure.
这告诉了,我们如果在平衡时2,改变总压强NO2的量会发生什么变化。
So now if I draw a diagram, and I just focus on, so there's the total pressure sitting here.
现在如果我要画相图，我只需要关注，这里代表总压强。
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