Saturns day is roughly 10 hours. it takes about 30 years for saturn to return to the same point in space. how do saturns periods of rotation and revolution compare to earths?

a) earths period of rotation and revolution are both shorter
b) earths period of rotation and revolution are both longer
c) earths period of rotation is longer; earths period of revolution is shorter
d) earths period of rotation is shorter; earths period of revolution is longer

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