The Kansas State University study, however, may show a way that reduces risk for people who grill on high heat.
VOA: special.2010.06.01
All right, so this is the heat flowing in or out of the system, and these are all functions of state.
好的,这就是系统的热量变化,这些都是态函数。
Delta u, delta H, familiar state functions, q w changes in their values, q, w, heat and work.
U,△H,很熟悉的态函数,它们的值在变化;
As I'm sure you know, we're able, with various lower organisms, to put them in a state of suspended animation and then, the amazing thing is, if you heat them back up again properly, they start functioning again.
我想你们一定知道,我们能够使各种低等生物,进入假死状态,而后令人称奇的是,如果将它们正确地重新升温,它们又会重新恢复功能。
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。
So we'd really like to be able to find some sort of equation of state, or some sort of rather function of state that's going to relate the heat going in or out of the system with that function of state, because this isn't going to do it.
所以我们真的想要去,找到一些态方程或者态函数,通过这个态函数可以表示热量,在系统与外界的交换,因为这个不能表示它。
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