Use the half-reaction method in acidic,
aqueous solution to balance each of the
following redox reactions:
a. Cl(aq) + Cr2O3- (aq) →
C12(8) + Cr+(aq)
b. Cu(s) + Ag+ (aq) → Cu²+(aq) + Ag(s)
c. Br2(l) + I (aq)→→ 12(s) + Br"(aq)
d. I (aq) + NO (aq) → NO(g) + L (s)

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante

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