5. Which of the following is the best explanation why a reaction in a closed container can appear to stop before all the reactants are converted to products? (2 point
The forward reaction has run to completion, and the reverse reaction has started.
The reaction reaches equilibrium, and the forward and reverse reactions stop.
The forward and reverse reactions eventually reach the same rate.
O
The limiting reactant prevents the forward reaction from continuing to completion.

the formula mass of a molecule or a compound is the sum of the atomic weights of the atoms in its empirical formula

(that's what i know about formula mass)

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

answer7,570,82356 cubic centimeters;