R-421A Dew Point #2

[Saturatedpsi]

I started a dew point thread a year or so ago, which is now closed...

R-421A Dew Point (http://www.refrigeration-engineer.com/forums/showthread.php?47917-R-421A-Dew-Point)

I never was quite satisfied with my minimal degree of understanding, relative to the composition of the dew "drop" of liquid...and kept on looking. Finally stumbled onto a discussion of "ideal mixtures of liquids." And although it covers much of the same discussions we've seen relative to zeotropic blends, it additionally mentioned "intermolecular forces", which covers the "why" behind the dew drop containing some of both the components in R-421A.

I always suspected some mysterious forces at work, but the refrigerant related discussions never got around to saying it...that I saw.

If your inclinations include scholarly links, here it is...

Ideal Liquid Mixtures (https://www.chemguide.co.uk/physical/phaseeqia/idealpd.html#top)

[Rob White]

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Oh RAOULT'S LAW why didn't you say......................... :)

There is always an answer if you look hard enough. Thank you for the update.

Rob

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[Saturatedpsi]

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Oh RAOULT'S LAW why didn't you say......................... :)

There is always an answer if you look hard enough. Thank you for the update.

Rob

..and oftentimes, I never actually locate the answer; I just stumble onto it. :)