A)Suppose that Li2O is added as an impurity to CaO. If the Li+substitutes for Ca2+, what kind of vacancies would you expect to form? How many of these vacancies are created for every Li+added?(b)Suppose that CaCl2is added as an impurity to CaO. If the Cl-substitutes for O2-, what kind of vacancies would you expect to form? How many of the vacancies are created for every Cl-added?

the answer is   c.) 1575 j.

explanation:

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