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What makes water vapor rise?

April 26, 2017Rise vapor water

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What makes water vapor rise?

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Water vapor is a gas made of one oxygen atom and two hydrogen atoms. The surrounding air is a gas mixture consisting mostly of nitrogen (two nitrogen atoms). Water vapor is lighter than air and therefore will rise until it has time to mix with the surrounding air. The resulting moist air is lighter than any nearby dryer air at the same temperature, and so will also rise.