This normal weight animal like this has its whole equilibrium thrown off, its homeostasis thrown off when its dietary conditions change.
在饮食条件发生变化时,这些正常体重动物的生理平衡被打破,于是摈弃了原来的平衡饮食
In those cases, though, you'd have quite a reasonable equilibrium, spontaneously that is there would be a lot of reaction that went if you simply started under practical conditions and let it go.
你也会得到平衡,尽管在这种情况下你得到了一个,自发的,合理的平衡,这是在正常条件下进行的,许多化学反应的情况。
So I just want to use that again and again, starting from that, for various different sorts of conditions andderive the criterion for equilibrium in each set of conditions.
所以我将会一遍又一遍地使用这个公式,从这个公式出发,在各种条件了,推导出,任意条件下的平衡条件。
There's our condition for equilibrium at constant temperature and pressure.
这就是我们在,恒定温度和压强下的平衡条件。
So, there's our condition for equilibrium.
然后,这里是我们的平衡条件。
In other words, we need criteria for equilibrium under more general conditions than the ones that we've dealt with so far, than the one set of conditions that we've dealt with so far, which is isolated system.
换句话说,相比我们目前为止,考虑和处理的问题,我们需要更一般条件下平衡的判据,我们目前,只考虑了孤立系统。
And we'll be able to determine equilibrium under those conditions.
我们能够,这些条件下的平衡。
To figure out equilibrium. And what the conditions were.
平衡态和平衡条件。
So the point is, this balance between energy thatyou could think of as say bond energies in chemical reactions, and entropy that you can think of in terms of disorder, how many different possible combinations or configurations of something wrong, will dictate where the equilibrium lies.
关键在于,这种能量与熵之间的平衡,确定了平衡的条件,在化学中能量涉及键能,而熵和无序有关,即有多少可能的不同组合或者形位,二者的平衡会告诉我们平衡态是什么样子。
In some sense, that's one reason to associate this as a kind of energy, H just like mechanical energy u or enthalpy H, it's the minimum free energy state that is the equilibrium state under the relevant conditions.
在某种意义下,这是我们把这些物理量称为能量的原因,就像机械能U和自由焓,具有最小自由能的状态在特定的条件下,就是平衡态。
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