CHAPTER 12 EQUILIBRIUM CONDITIONS IN MULTICOMPONENT SYSTEMS
12.8 LIQUID–GASEQUILIBRIA 407
following solubilities of gaseous Cl 2 in several dissimilar solvents at 0 C and a partial
pressure of1:01bar:xBD0:270in heptane,xBD0:288in SiCl 4 , andxBD0:298in
CCl 4. These values are similar to one another and close to the ideal valuepB=pBD
0:273.
12.8.5 Effect of temperature and pressure on Henry’s law constants
Consider the solution process B(g)!B(soln) for a nonelectrolyte solute B. The expression
for the thermodynamic equilibrium constant, with a solute standard state based on mole
fraction, is
KD
aB(sln)
aB(g)