For which of the following equilibria does keq= [o2]?
a. o2(l)< => o2(g)
b. 2o3(g)< => 3o2(g)
c. 2h2o(l)< => 2h2(g)+ o2(g)
d. 2hg(s)+ o2(g)< => 2hgo(s)
e. c(s)+ o2(g)< => co2(g)

i'm assuming that it's c.) red bank..

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