In reality, the reactor at equilibrium at 400 K contains 19.70 moles of B and 0.15 moles of A. What are the activity coefficients of A and B in this liquid mixture?
A vessel initially contains 10 moles of pure liquid A at P=5 atm and T=400 K. The following reaction occurs isothermally and isobarically until equilibrium is achieved:
A ?2B
Thermochemical data on the two compounds in the liquid phase is presented in the following table. Values of G and H were obtained with a reference pressure of 1 bar:
Back-solve for ?:
Substitute into equilibrium constant equation, this time including activity coefficient terms in the fugacity expressions:
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