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But we've defined the enthalpy of those elements in their stable state at room temperature and pressure as zero, right?

但我们已经定义了这些,元素处于它们室温和常压下,最稳定的状态时的焓为零，对吧？

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What we define as zero is the enthalpy of every element in its natural state at room temperature and ambient pressure.

我们将零点定义为每种元素,在室温和正常大气压下,在其自然状态下的焓。

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So if you had a jar full of triglycerides it would behave like an oil, many would be liquid at room temperature.

所以如果你有一满瓶甘油三酯,它看上去就好像油一样,它们在室温下都是液体

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Even on a mild spring day, you can feel the temperature of the room rise as you approach the center of the factory.

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It has long been known that some solid materials, called metal hydrides, are capable of storing small amounts (about 1-2% of their own weight) of hydrogen at room temperature.

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