29) At pressures below about 20 atm, some gas mixtures obey the following equation of state, --—a_p-b_p², where a„ = Σya, and √√5 = ₁√₁. The molar volume of a mixture is i-1 =Ży,f(p.T.y.). V = RT P i-1 given by an expression of the form V = a) Derive the function f(p,T,y).
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