1
$\begingroup$

In our everyday life, does the temperature or humidity have a greater effect on how fast things dry? Are there any theories/models that explain this quantitatively?

$\endgroup$
2
  • 1
    $\begingroup$ "Are there any theories/models that explain this quantitatively?" Of course there are. They live mostly in thermodynamics and statistical mechanics, but they are complicated by the fact that many of the ill-specified "things" you probably care about have a lot of structure. Phase change physics is fun. Or at least if can be if you come properly equipped. $\endgroup$ Commented Sep 7, 2013 at 18:30
  • $\begingroup$ Fysics is phun; always! ;-) $\endgroup$ Commented Sep 7, 2013 at 20:08

1 Answer 1

1
$\begingroup$

It is just a mass transfer that is driven by the difference in vapor pressure of the liquid versus vapor pressure in the vapor phase.

If the relative humidity is 100% then you are not going to get any evaporation. Even at 100 °F.

But if the humidity is 0 you will get pretty good evaporation at 40 °F.

All that really matters is relative humidity. But as you increase temperature for the same absolute humidity the relative humidity goes down.

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.