CHM4411: Additional Review Questions for Exam #2 1. Assume that the equation of state of a gas is written in the form: ()()P Vb TRT−=. Obtain analytic functions giving the fugacity (f) and the fugacity coefficient (γ) as a function of b(T) and P. 2. Engel and Reid: p8.3 (page 189) 3. Consider the graphite-diamond phase transition. Using data from the appendix of your text, calculate oHΔfor this transition at 298.15K and 1 bar. The density of graphite and diamond are 2.25 g.cm-3and 3.51 g.cm-3, respectively. Compute VΔfor this phase transition. Given the fact that diamond and graphite are at equilibrium at 3000 K and 235 kbar, compute the ‘rate’ at which the equilibrium pressure changes with temperature at that temperature and pressure. Assume oHΔis independent of temperature for this transition. 4. A solution is prepared by dissolving 15.000 g of NaCl(solid)in 1.0000 kg of H2O at 363.15 K. The equilibrium H2O vapor pressure over the solution is found to be 521.00
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