How can the relative volatility be determined using only Henry’s law constant and solubility data?
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There is no pressure data, but there are data on solubility and Henry’s constant as a function of temperature. How can the equilibrium constants at various temperatures be determined?
For the solvent, p1=ps*x1; for the solute, p2=H*x2. The gas-phase concentrations are y1=p1/(p1+p2) and y2=p2/(p1+p2). The equilibrium constant is ki=yi/*. The above represents an approximate calculation; a precise calculation requires taking into account activity coefficients and fugacity coefficients. Last edited by zhangyong6404 on 2009-2-24 20:56.]