-
OK, now we actually would like to simplify this or to write this in terms of not the volume change, v2/v1 but the pressure change. So, we have V2 over V1.
接下来我们将要把问题简化,不用体积变化来描述，而改作用压强变化来描述，现在我们有。
-
So now we have a constant volume reversible temperature change.
所以现在我们有一个,等体，可逆的温度变化。
-
Now, if I want to change those quantities; change the temperature, change the volume, how will it change?
如果我现在打算改变这些量;,改变温度，改变体积，它会如何改变？
-
You just change volume to pressure and basically you're looking at enthalpy under a constant -- anything that's done at a constant volume path with energy, there's the same thing happening under constant pressure path for enthalpy.
可以看到这就是把体积换成了压强,一般我们都是在一种恒定状态下,考虑焓的，任何在恒容条件下,能伴随能量变化的东西，也在恒压条件下伴随焓同样地变化,所以你可以经常。
-
How many moles of gas are there in each case, in reactants and products? If that changes, of course you know that the pressure in there is going to change at constant volume if the amount of gas in there is changing.
在反应物和生成物中，各有多少摩尔的气体？,如果它发生了变化,当然在等体条件下，如果气体的总量,发生了变化，压强也会发生变化。
-
Now let's change the pressure and temperature and sweep through a whole range of pressures and temperatures and measure the volume in every one of them.
然后改变气压和温度,并且让气压和温度,取便所有可能的数值,测量相应的体积。
-
The volume is going to change, and we can see how the entropy changes.
体积发生变化，然后看熵如何发生变化。
-
And so here the volume can change.
体积会发生变化。
-
The additional change due to changing pressure volume is certainly measurable.
由于压强和体积的改变带来的,附加变化无疑是可以测量的。
-
So I need, well the pressure is constant, but there's a change in volume.
压强不变，体积变化。
应用推荐