Last Updated
：2025/11/20
vapour density
（ plural ）
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(physics) The ratio of the density of a gas to the density of hydrogen at the same temperature and pressure.
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vapour density
In the lab, we measured the vapour density of the unknown gas to determine its relative molecular weight compared to hydrogen.
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In the lab, we measured the vapour density of the unknown gas to determine its relative molecular weight compared to hydrogen.
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