1 | There's no inert gas. | |
2 | Name: Noble gases, inert gases. | |
3 | Argon belongs to the family of rare inert gases. | |
4 | Yeah. So, I have a lot of inert gas here. | |
5 | In the presence of this inert gas, the air. | |
6 | What do we know about the noble gases? | |
7 | So in the absence of this inert gas here, I just have the pure substance. | |
8 | I add a little bit of inert gas, there's a little bit more entropy of mixing. | |
9 | 然后加入一定量的惰性气体,那么体系上部的熵发生了什么变化?增加了?
I add some inert gas, what happens to the entropy on top? It's increasing, right? | |
10 | 尽管你认为那是氮气,我的意思是,它是一种惰性气体。
And, although you think that nitrogen, I mean, it's an inert gas. | |
11 | 涉及惰性气体时存在两个主要的危险:窒息和压力。
Two principal hazards exist in dealing with inert gases: asphyxiation and pressure. | |
12 | 他说:“我们没有看到仍和太阳能惰性气体在地幔之中。”
"We don't see any solar noble gas in the mantle," he says. | |
13 | 我稍稍增加A的量会怎么样,如果在存在惰性气体的情况下?
What if I had a little bit more A, in the presence of the inert gas? | |
14 | 我们可以继续,镁,铝,一直到惰性气体,氩它是Ne然后。
We can go all the way down -- magnesium aluminum, all the way to this noble gas, 3s23p6 argon, which would be n e and then 3 s 2, 3 p 6. | |
15 | 我知道氖有个更高的电子力,但在常态下它是惰性气体。
I know neon has a higher yet electronegativity, but normally it is inert. | |
16 | 如果没有A物质,而只有惰性气体的话,那么就不会有混合熵。
If I have nothing, if I have no A here, up here and just the inert gas, then there's no entropy of mixing. | |
17 | 食物可以在空气、过热蒸汽、真空、惰性气体中干燥,可以用直接加热干燥。
Foodstuffs may be dried in air, superheated steam, in vacuum, in inert gas, and by the direct application of heat. | |
18 | 将这片区域和房子的其他部分隔离,放在充满惰性气体的双层玻璃窗户里。
Insulate it and the rest of your house. Put in double-pane windows filled with inert gas. | |
19 | 反应性质:直到20世纪60年代,这些元素都被认为是惰性气体。这是因为:这些元素的氧化数是0,这使稀有气体不容易形成化合物。
Behavior: These elements were considered to be inert gases until the 1960s, because their oxidation number of zero prevents the noble gases from forming compounds readily. | |
20 | 随着一些有害材料,可以提供进一步的保障真空干燥机使用惰性气体中氧气含量的限制。
With some hazardous materials, you can provide further protection by using inert gas to limit the oxygen level in the vacuum dryer. |