4.Which sentence BEST describes the relationship between the plates in Earth's crust and the sizes of the landmasses on top of the plates? A. The plates and the landmasses are approximately the same sizes.

B. The plates are much smaller than the size of the landmasses.

C. The plates are much larger than the size of the landmasses.

D. The plates are different in size from the landmasses.

D. The plates are different in size from the landmasses.

Explanation:

b) nuclear ive learned that in a pedtrodic table

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