13. A student wants to determine whether an unknown cold wantonic compound to put some in water and find that it does not dissolve. It says that this proves the solid is tonte, which best evaluate the student's reasoning (points)
He is incorrect, because water can disolve on solid
the test proves nothing because water dissolves all solide
He is correct, because polar liquid cannot dissolve lonie solids
The test proves nothing because it only shows that the sold is a compound

What

Explanation:

1.solid

2.carbon dioxide

3.helium

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