Kelvin equation: Difference between revisions
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Carl McBride (talk | contribs) (New page: The '''Kelvin equation''' is used to calculate the onset/occurrence of capillary condensation :<math>\ln \left( \frac{p}{p_0}\right) = - \frac{2\gamma_{lg}}{RT\rho_lH}</math> Where '...) |
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Where ''p'' is the [[pressure]], <math>p_0</math> is the [[saturated vapour pressure]], <math>\gamma_{lg}</math> is the | Where ''p'' is the [[pressure]], <math>p_0</math> is the [[saturated vapour pressure]], <math>\gamma_{lg}</math> is the | ||
liquid-gas [[surface tension]] for the bulk fluid, <math>\rho_l</math> is the density of the bulk fluid, ''R'' is the [[ | liquid-gas [[surface tension]] for the bulk fluid, <math>\rho_l</math> is the density of the bulk fluid, ''R'' is the [[molar gas constant]], ''T'' is the [[temperature]] and ''H'' is the pore or capillary width. | ||
==References== | ==References== | ||
[[category: confined systems]] | [[category: confined systems]] | ||
Latest revision as of 17:36, 6 February 2008
The Kelvin equation is used to calculate the onset/occurrence of capillary condensation
Where p is the pressure, is the saturated vapour pressure, is the liquid-gas surface tension for the bulk fluid, is the density of the bulk fluid, R is the molar gas constant, T is the temperature and H is the pore or capillary width.
