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...
We are very satisfied with this cooperation and the communication process with the supplier is smooth. The product is delivered very quickly, and will be purchased again if needed later.
Product variety is complete, good quality and inexpensive, the delivery is fast and transport is security, very good, we are happy to cooperate with a reputable company!