二氧化氮与一氧化氮有什么区别?

2025-03-15 16:31:41
推荐回答(3个)
回答1:

一氧化氮在空气中很不稳定,易被氧化成二氧化氮,二氧化氮与水反应生成硝酸。

这样说吧,只要你生成一氧化氮,在氧气足够的条件下,就能被氧化成二氧化氮,

2no+o2=2no2
(有毒、红棕色、与水反应)
3no2+h2o=2hno3+no

呵呵,是啊,从这个式子看的出,只要有
二氧化氮生成硝酸,就要放出一氧化氮,所以才会出现你上面的疑问

在看看这个式子4no+3o2+2h2o====4hno3

你有没有发现,3molno2才生成1molno

2no+o2=2no2
3no2+h2o=2hno3+no

你在看看叠加过程
6no+3o2=6no2 6no2+2h2o=4hno3+2no

6no+3o2+2h2o=4hno3+2no
从这个方程来看,可以说6mol
no生成4molhno3还剩下2molno

可以看成4mol
no发生了反应,既4no+3o2+2h2o====4hno3
其实这个方程是消掉两边的no

呵呵,可以说,反应生出的no才参与生成物。

总上,反应总会有no生成的,经管不停氧化,假设条件允许,从
2no+o2=2no2
3no2+h2o=2hno3+no
这两个式子可以看出,要2个no分子才能生成2个no2
但需要3个no2分子才能生成一个no分子,所以,只要不够3个no2分子
3no2+h2o=2hno3+no
这个式子就不能成立。所以说,
只要3no2+h2o=2hno3+no
成立所生成的no
都被氧化成no2,当不够3个no2,就不再生成no

所以说,最后可能剩下2个或者1个no2分子,呵呵,这个有意义吗???

回答2:

二氧化氮NO2室温下为红棕色气体,易溶于水并与水反应生成硝酸,且具有刺激性气味。
一氧化氮NO,无色无臭气体。能溶于水、醇和硫酸。在大气中很容易与氧发生反应生成二氧化氮。

回答3:

氮的固定

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