[CAUT] FW: Temperature/Humidity range

[Alan McCoy]

Actually, Chris, for a constant amount of water vapor, as temperature rises,
relative humidity decreases. Relative humidity is the amount of water vapor
in the air relative to the amount of water vapor that the air can hold at
that temperature (its saturation point). Warmer air can hold more water
vapor.

So for example given a constant level of water vapor. The temp is 70 and the
RH is 40%. If, ....presto...., the temp is raised to 80, the RH will
decrease to around 30%.

Check out this page for a more complete explanation:
http://ianrpubs.unl.edu/generalag/g626.htm#tpc





> From: Chris Solliday <solliday@ptd.net>
> Reply-To: "College and University Technicians <caut@ptg.org>" <caut@ptg.org>
> Date: Mon, 16 Jan 2006 19:27:32 -0500
> To: "College and University Technicians <caut@ptg.org>" <caut@ptg.org>
> Subject: Re: [CAUT] FW: Temperature/Humidity range
> 
> 30 - 60 % is at 68F, the humidity will rise with the temperature and vice
> versa or somethin like that. Essentially you are on the right track but you
> need to understand that humidty is RELATIVE to the temperature. Chris
> Solliday