If we start with 1 msolutions of both zn2 and cu2 ions at 25 °c, the following oxidation-reduction reaction has a potential of 1.10 v. zn(s) cu2 (aq) →zn2 (aq) cu(s)predict what would happen to the voltageof a batterybased on this reaction as the zinc metal is graduallyoxidized and the cu2 ions are graduallyreduced. use this prediction to explain whya battery-driven watch stops suddenly.

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