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However, the thing to remember is, when you look at heats of reaction under those conditions it's all well and good.
相反，需要记住，当你需要知道反应中放出的热量时,这些量是很有用的。
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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。
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So if we have a negative change in energy for any reaction as it's written, what that actually means is we're giving off energy as the reaction proceeds.
如果我们像这里写的这样,在任何一个反应过后，得，到的能量变化为负值,这就意味着我们在这个过程中放出了能量。
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Just "Breathing in I relax, breathing out I release.", releasing tension, releasing stress, release whatever one needs to, I release pain, even.
吸气，放松，呼气，释放，释放出紧张感，压力感，释放需要放出的，甚至是苦痛。
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The Fed has never given loans to anyone other than a depository institution that is a bank until last month, except they did so in the Depression.
上个月，联邦政府已经开始限制贷款业务,除了银行以外的其他金融机构,休想再放出一分钱的贷款，也就是在萧条时政府才会这么做。
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And during the siege there were sixty-five balloon flights carrying two and a half million letters, weighing a grand total of 10,000 kilograms, so roughly about 20,000 pounds.
在巴黎被围期间,共放出了六十五个热气球,带走了多达两百五十万封信,合计重量约有一万公斤,也就是两万磅左右
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If de Broglie is correct, let's irradiate the nickel crystal with a beam of electrons where the wavelength of the beam of electrons is identical to the wavelength of the x-rays that were used and see what we get.
如果德·布罗意是正确的，那么镍晶体放出,电子光束,电子束的波长,和原来讲过的X光的波长是相等的,再看看得到了什么。
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What does come out, which is very useful is, if you do run the reaction, here's how much heat comes out.
能得到的结果是，如果我们进行这个化学反应，有多少热量放出，当然这也是很重要的。
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You calculate how much heat is released in the reaction. And then what's going to matter is what's the heat capacity of the whole, of the calorimeter?
就是计算在反应中,放出了多少热量,接下来关键的是,整个量热计的热容是多少？
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So, if we have energy that's released, would you say that the chlorine ion is more or less stable than the chlorine atom?
那么，如果我们放出了能量，你认为氯离子比氯原子,更稳定还是更不稳定呢？
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this happens spontaneously, you actually get energy out of the reaction as this happens.
这是自发的，当反应发生的时候,你会自发地放出能量。
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So that's why we're giving off extra energy.
这也就是我们放出多余能量的原因。
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So, they had an unfortunate incentive to make bad loans.
因此他们投机取巧不断放出不良贷款
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So he sent out a fake--he bought -he shorted the company and he --the stock in the company- and he bought --he put out a fake press release saying that there was bad news for the company.
他散布假消息,他先卖空公司的股份,接着买入,然后他对外界放出假消息,说公司有重大利空
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This is why people right tables and tables of H delta H's. Why you have delta H's from all these reactions, because this is basically the heat and the heat is something we can measure, we can control. We can figure out how much heat is going in and out of something.
这就是为什么人们一再提出ΔH的原因,为什么在所有的反应中你都能看到Δ,因为它就是热量，而且热量,是一种我们可以测量并且控制的东西，我们可以测量出有多少热量,从一些东西里面放出或被吸收。
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