(Ill) (a) From the van der Waals equation of state,
Chapter 18, Problem 18.43(choose chapter or problem)
(Ill) (a) From the van der Waals equation of state, showthat the critical temperature and pressure are given by_ 8 acr 27 bRa21b2[Hint: Use the fact that the P versus V curve has an inflectionpoint at the critical point so that the first and secondderivatives are zero.] (b) Determine a and b for C02 fromthe measured values of r cr = 304 K and Pcr = 72.8 atm.
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