-
But as if it depended upon that hot-blooded princess, her soul at a white heat under the fires of sadness and jealousy.
VOA: special.2009.04.18
-
I can take a heat pack, like the kind you buy at a pharmacy. Break it up. It gets hot.
买来的热装罐在里面打破,它就变热了。
-
To ask questions like how much heat is released in a chemical reaction that takes place at constant temperature.
当我们想要知道,当一个化学反应在恒定的温度下发生时,会放出多少热量时。
-
Heat typically becomes painful at about 47 degrees Celsius.
VOA: standard.2010.05.04
-
qB This must be heat q B, right. So again, but now let's also look at our special function.
这个不是，这应该是热量，对吧？所以又一次，这些是我们熟悉的。
-
And it's not hard to see how the heat of reaction at room temperature can be related to they heat of reaction at other temperatures.
知道室温下的反应热,如何与其他温度下的反应,热联系起来这点并不困难。
-
So again, for both heat and work we don't get the same result. Now let's look at our special function, right. So here's path A.
所以，再一次说明，对于热量和功,我们得到的结果是不同的,现在让我们看看我们的特殊函数。
-
You do it so quickly that the heat flow between the inside of the bicycle pump and the outside is too slow compared to the speed at which you compress.
我们用力很大,于是压缩得很快,打气筒内外热传递的速度,与之相比要慢得多。
-
And our heat of reaction or enthalpy of reaction is defined as the enthalpy at constant pressure.
我们的反应热，或反映,的焓被定义为恒压，等温。
-
It's now, all we have to do is say we're going to have heat at constant volume.
我们需要做的就是,计算恒定体积下的热量。
-
Every time you do the experiment T in equilibrium with the heat bath at T, v2 you'll get the same p2 and V2.
与热库相接触的每次实验中,达到热平衡后的温度都是，压强都是p2，体积都是。
-
There's no change in them, and then we also looked at some at non-state functions, work and heat, and saw that those aren't zero going around a cycle. Of course you can do work in a cyclic process, and heat can be exchanged with the environment at the same time.
它们不会有变化，然后我们研究了,一些非态函数，功和热量，并看到,沿着循环行进一周的话,它们并不是零，当然你可以在,一个循环过程中做功，而同时热量可以在系统,与外界环境之间进行交换。
-
We use a liquid helium. And so in order to make a liquid helium, you can't take helium at room temperature and do this, because if you did, you would just heat it up, because the room temperature is above the inversion temperature, so Joule-Thomson would heat up the helium.
为了得到液氦,不能再常温,做这个实验,否则就是加热氦气，因为室温高于它的转变温度,所以焦耳-汤姆孙，实验会加热氦气。
-
We can measure the heat capacity at constant volume, and now we have another term, and if we can figure out how to measure it, we'll have a complete form for this differential du which will enable us to calculate du for any process.
我们能够测量恒定体积下的热容，这里我们有另一项，如果能够知道怎么测量它，问我们就有了这个完整的微分式,就能够对任何过程计算。
-
So in principle, if I measure how much hotter, I can determine how much heat was produced, and from that, I should be able H to calculate delta H at T1.
所以原则上，如果我测量，变热了多少，我就能确定，有多少热被产生,从中我就可以计算T1下的Δ
应用推荐