At 300k and at a total pressure of 35.5 kpa, the composition of the system ethanol (1) and toluene (2) at equilibrium is x, = 0.35 and y, = 0.78.the saturation pressure at the given temperature for pure components are p = 45.05 kpa and p, = 10 kpa respectively. calculate the liquid phase activity coefficients and the value rt .) ; , = 1.55,7 =17 -0.413 b) 7 = 1.95,7 = 1 c) 7 = 1.25.7 d) 7, = 1.75

answer; talc and gypsum;

answer : (a) volume of the gas = 8.67 ×   l

                (b) second virial coefficient b = -1.21226 l/mole

solution :   given,     t = 300k

                                p = 20atm

                                z = 0.86

                                n = 8.2 mmoles = 8.2 × moles

                                r =   0.082 l atm/k/mol

        find,     (a) volume of gas   and (b) second virial coefficient b at 300k.

formula used :            

                          and            

(a)            

                    = \times 0.082\times 300}{20}[/tex]

                    = 8.67 ×   l

(b)      

                    = (0.00867-1) × 8.659

                    = - 8.5839 l/mole

i think is conclusions.i think so