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It is joules per atom. Or, if you multiply by Avogadro's number then you will get joules per mole.
焦耳每个原子，或者，如果乘以,阿伏伽德罗常数你会得到焦耳数每摩尔。
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So the temperature is intensive, and you can make intensive properties out of the extensive properties by dividing by the numberof moles in the system.
所以温度是强度量，你可以通过,除以系统中物质的摩尔数,来从广延量中导出强度量。
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So, clearly, mass is conserved, not mole numbers.
显然是质量守恒，而不是摩尔数守恒。
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Here just two, so we changed the number of moles of gas by three. All right, how much did it matter, right?
所以我们将气体的摩尔数,改变了3摩尔，好，它会起多大作用？
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The number of moles stays the same a closed systems, gas doesn't come out.
摩尔数保持不变,因为是闭系，气体不会跑出去。
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If you have the number of moles and two intensive variables, then you know everything there is to know about the system.
如果你有摩尔数,和两个强度量，你就能知道关于这个系统的一切,关于系统的平衡态的一切。
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You just need a few macroscopic variables that are very familiar to you, like the pressure, the temperature, the volume, the number of moles of each component, the mass of the system.
你只需要某些你非常熟悉的宏观变量,比如压强，温度，体积，每个组分的摩尔数，系统的质量。
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And, I mean literally, mass, not mole number.
我想罗嗦一下，质量，而不是摩尔数。
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It tells you the number of moles.
它告诉了你摩尔数。
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In this case, V = /P. Have two quantities and the number of moles gives you another property. You don't need to know the volume. All you need to know is the pressure and temperature and the number of moles to get the volume.
以及气体的摩尔数,就可以得到第三个量,知道压强，温度和气体的,摩尔数就可以推导出气体的体积,这称为状态方程,它建立了状态函数之间的联系。
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So now, this equation here relates three state functions together: the pressure the volume, and the temperature. Now, if you remember, we said that if you had a substance, if you knew the number of moles and two properties, you knew everything about the gas.
压强，体积和温度,大家应该还记得,我们提过，只要知道气体的摩尔数,和任意两个状态函数,就可以推导出其他的状态函数，这样，我们可以把它改写成。
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With respect to n, the number of moles.
对n的偏导数，这里的n是摩尔数。
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