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氮气与空气哪个重
更新时间: 2020-11-03 00:00:00  

氮气与空气比较空气会重些。因为氮气密度=28/22.4,空气密度=29/22.4,空气密度比氮气大。氮气通常状况下是一种无色无味的气体,是空气的主要成份之一。在标准大气压下,氮气冷却至-195.8℃时,变成无色的液体,冷却至-209.8℃时,液态氮变成雪状的固体。

关键词: 氮气 空气 哪个

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