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And temperature then is associated with property And if it had changed, then the temperature between those two would have changed in a very particular way.
就与这种性质有关,如果它发生了改变，说明这,两者的温度,以特定的方式发生了改变。
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In other words, how much does the temperature of the whole thing change when you put an ordinary amount of material in there and run a reaction, right. Well, what do you do?
当你放入通常数量的材料,并进行反应时,整个装置的温度,改变有多少，你要做什么？
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We know it has to big anyway, since we can extract heat from it without changing the temperature.
我们知道它必须很大，因为我们得从中提取热量,但不改变它的温度。
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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？
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Then we can take the derivative of that quantity, when we vary the temperature, holding the volume constant.
即恒定体积，改变温度，这里恒定温度下。
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So we don't really need to put in a certain amount of heat and change the temperature of the products and the calorimeter and so on.
所以我们实际上并不需要输入,一定的热量，改变生成物,和量热计的温度之类。
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So again with the Gibbs free energy, now I see how to determine, if I change the pressure, if I change the temperature by some modest amount, how much is the Gibbs free energy going to change?
再一次通过吉布斯自由能，我知道当我，适当的改变压强和，温度的时候，吉布斯自由能如何变化？
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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。
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So at this point the temperature will change.
在这点温度会改变。
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Now, you can have a change of temperature without any heat being involved.
不进行热量传递也可以改变温度,想象有一个热绝缘的盒子。
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There is a change in temperature, right?
温度会改变，对吧？
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If you change the temperature entropy changes and so on.
如果你改变温度，熵也会变化。
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PROFESSOR: Change the temperature, right.
改变温度。
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We can change of temperature.
我们可以改变温度。
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STUDENT: Change the temperature?
改变温度？
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It's just how much heat is involved when we change the temperature. Now, the products have some heat capacity associated with them right, it takes a certain amount of heat if we make their temperature change, to either put it in or take it away, depending on which direction the temperature is changing.
问题就是当我们改变温度时,有多少热量发生了转移,生成物具有一定的热容,如果我们改变,它们的温度，就要输入或,提取一定的热量,这取决于温度改变的方向。
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What we're really going to do in practice is we're going to measure, we're going to use our thermometer and say great, how much did the temperature change, right.
H1是零,实际上我们要做的,是用我们的温度计,测量温度改变了多少。
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You're changing the pressure, and the temperature is going up.
你改变了压力，导致温度升高，偏T偏p是正数，偏T偏p是正数。
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So how does delta H change if we change the temperature?
对吧？那么如果我们改变温度,ΔH会如何变化？
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I change the temperature, what does that mean?
只改变温度，偏H偏p是多少？
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Or I could have a non-adiabatic, I could take the same temperature change, by taking a flame, or a heat source and heating up my substance. So, clearly q is going to depend on the path.
也能改变温度，绝热指的是没有热传递，在非绝热条件下，也同样可以升温,比如用火或者热源加热，这样，q也应当与路径有关。
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