That may well be so in your area. But it is not a causal relationship. Just because the temperature goes up then, that doesn't cause the RH to go up. In fact if the temperature is rising and the RH is also rising, that only means that the absolute amount of water vapor is rising too. Rising, in fact, at a higher rate than the warmer air can absorb, thus increasing the RH. So the proper word to use in this case is not "will" but "does." The RH does go up, but that it does so is because of the increase in water vapor, not because of the increase in temperature. Alan > From: Chris Solliday <solliday@ptd.net> > Reply-To: "College and University Technicians <caut@ptg.org>" <caut@ptg.org> > Date: Wed, 18 Jan 2006 11:40:17 -0500 > To: "College and University Technicians <caut@ptg.org>" <caut@ptg.org> > Subject: Re: [CAUT] FW: Temperature/Humidity range > > I'd like to revise my last reply to Alan, I'll stick with "will" because > here when the temperature rises around here in summer the humidity does > also. This does imply a rise in water vapor. I realize this is not what you > are addressing but it is what I was saying. I'll will try and be clearer > from herer. Nevertheless the site > http://ianrpubs.unl.edu/generalag/g828.htm#pc is very helpful and whether we > are concerned with pigpens or concert halls I think the info is well > presented. Chris Solliday > ----- Original Message ----- > From: "Alan McCoy" <amccoy@mail.ewu.edu> > To: <caut@ptg.org> > Sent: Tuesday, January 17, 2006 1:20 PM > Subject: Re: [CAUT] FW: Temperature/Humidity range > > >> 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 >> >> >> _______________________________________________ >> caut list info: https://www.moypiano.com/resources/#archives >> >> > > > _______________________________________________ > caut list info: https://www.moypiano.com/resources/#archives
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