56. In the reaction PCl, PClz + Cl, the partial pressure of PCly, Cl, and PCl, are 0.3, 0.2 and
0.6 atm respectively at equilibrium. If partial
pressure of PClz and Cl, was increased twice, what
will be the partial pressure of PCl, is in atm at new
equilibrium condition :-
(1) 0.3 (2) 1.2 (3) 2.4 (4) 0.15​

1. they vary with a higher number because boiling is way hotter than melting

just did the assignment and the answer was #1 +2 n

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