Which statement about balanced chemical equations is true? A. The total mass of the reactants equals the total mass of the
products.
B. The mass of the products is greater than the mass of the
reactants when the number of moles increases.
C. The mass of the new atoms that are formed equals the mass of
the atoms that made up the reactants.
D. The total number of moles of products equals the total number of
moles of reactants.

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