Oxygen, ozone and water vapour are heavier than air, yet none of them sink under gravity. ... nitrogen and oxygen at 78 per cent and 21 per cent respectively.
作者:P Yanisko · 被引用次数:23 — Nitrogen gas is only slightly lighter than air and readily mixes with air at ... Nitrogen can displace oxygen in the air, reducing the percentage of...6 页
2020年7月5日 — It is known that the atmosphere consists mostly of oxygen and nitrogen, with oxygen constituting about 21 % and nitrogen 78 %. Since released...
2016年9月18日 — The density of oxygen is greater than that of nitrogen. At a certain set temperature and pressure, all gases occupy the same volume. Since...
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