Kirchhoff's equation: Difference between revisions
From Glossary of Meteorology
imported>Perlwikibot (Created page with " {{TermHeader}} {{TermSearch}} <div class="termentry"> <div class="term"> == Kirchhoff's equation == </div> <div class="definition"><div class="short_definition">A...") |
imported>Perlwikibot No edit summary |
||
| Line 9: | Line 9: | ||
</div> | </div> | ||
<div class="definition"><div class="short_definition">A relation that equates the [[variation]] with [[temperature]] of the [[latent heat]] of a [[phase change]] to the difference between the [[specific heats]] of the two phases.</div><br/> <div class="paragraph">For the [[heat of vaporization]] this may be written as <div class="display-formula"><blockquote>[[File:ams2001glos-Ke6.gif|link=|center|ams2001glos-Ke6]]</blockquote></div> where ''L''<sub>''v''</sub> is the [[latent heat]] of [[vaporization]], ''c''<sub>''pv''</sub> is the specific heat at constant [[pressure]] of [[water vapor]], and ''c''<sub>''w''</sub> is the specific heat of liquid water.</div><br/> </div> | <div class="definition"><div class="short_definition">A relation that equates the [[variation]] with [[temperature]] of the [[latent heat]] of a [[phase change]] to the difference between the [[specific heats]] of the two phases.</div><br/> <div class="paragraph">For the [[heat of vaporization]] this may be written as <div class="display-formula"><blockquote>[[File:ams2001glos-Ke6.gif|link=|center|ams2001glos-Ke6]]</blockquote></div> where ''L''<sub>''v''</sub> is the [[latent heat]] of [[vaporization]], ''c''<sub>''pv''</sub> is the specific heat at constant [[pressure]] of [[water vapor|water vapor]], and ''c''<sub>''w''</sub> is the specific heat of liquid water.</div><br/> </div> | ||
</div> | </div> | ||
Latest revision as of 16:17, 25 April 2012
Kirchhoff's equation
A relation that equates the variation with temperature of the latent heat of a phase change to the difference between the specific heats of the two phases.
For the heat of vaporization this may be written as where Lv is the latent heat of vaporization, cpv is the specific heat at constant pressure of water vapor, and cw is the specific heat of liquid water.
