defined via partial pressure and amount concentration
symbol: $H_{\rm{v}}^{pc}$, unit: $\pu{Pa m3 mol-1}$
symbol: $H_{\rm{v}}^{pc}$, unit: $\pu{Pa m3 mol-1}$
https://doi.org/10.1351/goldbook.09023
Partial pressure \(p\) of a species in the gas phase divided by the amount concentration \(c_{\rm{l}}\) of that species in the liquid phase under equilibrium conditions at infinite dilution: \[H_{\rm{v}}^{pc}: = \underset{c_{\rm{l}} \to 0}{\rm{lim}}\frac{p}{c_{\rm{l}}}\]
Note: The coherent SI unit for \(H_{\rm{v}}^{pc}\) is \(\pu{Pa m3 mol-1}\).
Example: The Henry volatility of ozone in water at \(T = \pu{298.15 K}\) is \(H_{\rm{v}}^{pc}(\ce{O3}) = \pu{1.0E4 Pa m3 mol-1}\).
See also: Henry’s law volatility constant