I NEED HELP IMMEDIATELY!! ON THE QUIZ NOW How are Van Allen belts formed?
High-energy particles from the Sun get trapped in Earth’s magnetic field.
Metals in Earth’s core sink and rise, producing a circular movement of the metals.
Particles in solar wind travel along lines of Earth’s magnetic field and collide with gas atoms.
Material from the surface of the Sun erupts and forms a loop due to the Sun’s magnetic field.

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explanation:

the dependant variable is spilled water

the independent is the heat

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