So, for example, for the chlorine case, we would say that the electron affinity for chlorine is actually positive 349 kilojoules per mole.
比如,以氯为例,我们可以说氯的电子亲和能,应该等于正的,349,千焦每摩尔。
And we saw that in fact in this case delta S of mixing, we calculated it, saw that it is positive.
实际上如果我们计算气体混合过程中,熵的变化,我们会发现这个量是正的。
One major difference between electron affinity and ionization energy is that when we talked about ionization energy, remember ionization energy always has to be positive.
电子亲和能,与电离能之间最大的不同就在于,当我们提到电离能的时候,记得电离能总是正的。
Or if you want negative numbers, between negative 2 billion and positive 2 billion, but it's a finite range.
或者你想储存一个负数,就必须位于负20亿到,正20亿之间,是个有限的范围。
On the other hand, there were positive effects and those were added up on the other side of the ledger.
但另一方面,也有正效应,它们被记在账目的另一侧。
Here is a chart that just shows the positive energies, and you can see the various components, and then the negative energies and the net.
这是展示正能量的表格,你可以看到不同的成分,负能量和总能量。
There's two--One technical distinction that people love to put on Intro Psych exams is that the difference between positive reinforcement and negative reinforcement.
心理学导论的考试中,会经常考到一个术语上的区别,即正强化,与负强化之间的区别。
Every one of them has a positive equity premium; although the U.S. is on the high side of them all, it's not the best.
这些国家都存在正股权溢价,美国的股权溢价相对很多国家较高,但不是最高的
Obviously, if the balance of pleasure over pain is positive, that's better than zero.
显然如果快乐减痛苦是正的,即比零大。
I'm assuming all the components are positive.
我现在已经假设所有值都是正的
The two analogies we use " was strengthening our immune system or stronger "psychological engine" that has the capacity to endure more not just from the negative to zero, but also from the zero to the positive.
我们使用的两个类比,是加强我们的免役系统或加强“心理引擎“,获得更强大的忍受能力,不只是从负到零,还要从零到正。
Well, one thing that goes wrong is that suppose Coke and Pepsi were able to either to write a contract or whatever to sustain joint monopoly output at this high price, this price which is actually producing positive profits in the industry it is going to turn out, therefore the price is going to be above costs.
我来说吧,问题出在这里了,假设可口可乐和百事达成了协议,不管签的是协议还是合同,只要能通过协约维持垄断产出,通过制定高价来达到正的利润就行,这样价格是高于成本的
Namely in the stage where all the cells are PAX2 positive.
也就是所有的细胞,正处于PAX2的活跃期。
So, what we're looking at here is the force when we have two charged particles, one positive one negative -- here, the nucleus and an electron.
我们现在研究的是,一正一负俩个带电粒子之间的,作用力-在这里。
But when we're thinking about actual wave behavior of electrons, it's just important to keep in the back of our head that some areas have positive amplitude and some have negative.
电子的波动行为时,我们,要记住,某些地方是正的,某些地方是负的,当我们讲到。
dS/dV And that, now, we know must equal dS/dV, with a positive sign. At constant temperature.
我们知道这个等于恒定温度下的,符号为正。
Positive energy is repulsive, and negative energy is attractive.
正的能量值代表斥力,负的能量值代表引力。
And there is this separation which is a balance of attractive forces because the chloride is net negative and the sodium is net positive, but both of them, regardless of net charge, have electrons.
这里有一个平衡,引力的平衡,由于氯离子带有负的净电荷,钠离子带有正的净电荷,但是它们两个,没有考虑净电荷,电子。
Remember when we have waves we can have positive or a negative amplitude.
记住一个波会有,正的幅值和负的幅值。
The more positive the number, the better your life.
正的数值越大,你的生命越好。
In other words, if the rise in instability is greater than the fall in stability, delta E this is a positive delta E.
换而言之,如果不稳定性的增加,大于稳定性的降低,将会有一个正的。
And all of that is coming out of the heat of reaction, whether it's positive or negative.
所有这些都来源于反应热,它可以是正的或负的。
Delta v is positive in this direction here, the work is negative. So work on the system is positive. Work done by the system is negative.
功是负的,总而言之,外界对系统做功的符号为正。
In other words, T surrounding dS has to be greater than zero, and of course temperature is always positive.
换句话说这就意味着,环境温度T乘以dS必须大于零,当然环境温度T是正的。
I have three out of the five energies, and they are all positive.
这有3/5的能量,他们都是正的。
So if delta v is negative, in this case delta v is negative, OK, delta v is negative, pressure is a positive number, negative times negative is positive, work is greater than zero.
也就是当活塞,压缩气体的时候,做的功是正的,按照这一规定,我们需要在这里,加上一个负号,这是习惯规定。
So the way I've got things written here, q1 Heat's flowing from the hot reservoir to the engine that runs in a cycle.
我把这些都这些这里,是正的,q1,is,positive,热从高温的热源,传到循环工作的热机,对外做功。
sa So we have 1 s a, and we're drawing this as having a positive amplitude, but since we have destructive interference we're going to draw 1 s b as having the opposite sign, so we have a plus and a minus in terms of signs.
我们有,我们把这画成一个正的振幅,但因为我们是相消干涉,我们把1sb画成相反的符号,所以我们有一正一负两个符号。
The highest probability now is going to be along the x-axis, so that means we're going to have a positive wave function every place where x is positive.
概率最高的地方是沿着x轴,这意味着只要在x,大于零的地方波函数都是正的。
So, basically any time we have a really high positive number of electron affinity, it means that that atom or ion really wants to gain another electron, and it will be very stable and happy if it does so.
因此,基本上无论什么时候,只要我们有一个很大的正的电子亲和能,这就意味着这个原子,或离子非常希望得到一个电子,如果它得到了,会变得更稳定更开心。
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