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Vapor pressure lowering above saltwater

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Uploaded on Jan 30, 2012

This IR video shows that the evaporation rate of water from a cup of saltwater is smaller than that from a cup of freshwater. This is deduced from the weakening of the condensation heating effect onto a piece of paper above the saltwater cup.

See the "condensation heating" video: http://www.youtube.com/watch?v=ib3nwY...

See another "vapor pressure lowering" video: http://www.youtube.com/watch?v=dH_PR0...

Visit http://energy.concord.org/ir for more.

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