According to the collision theory, which is required for a high number of effective collisions? a very low amount of force from colliding molecules
a very low amount of kinetic energy from colliding molecules
molecular collisions that have very specific orientations
molecular collisions with energy to overcome activation energy

molecular collisions that have very specific orientations

Explanation:

Based on the collision theory, a high frequency of effective collision is dependent on the molecular collisions that have very specific orientations.

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