An atom has 3 protons 4 neutrons and 3 electrons. use the periodic table to determine which atom would have similar chemical properties to this atom. A. 10 protons, 12 neutrons, and 10 electrons

B. 11 protons m, 11 neutrons, and 11 electrons

C. 4 protons, 4 neutrons, and 3 electrons

D. 12 protons, 12 neutrons, and 12 electrons

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