SHOW ALL WORK1. Find the mass in grams of 8 x 10^29 molecules of CO2.

3 answers
Question:

SHOW ALL WORK
1. Find the mass in grams of 8 x 10^29 molecules of CO2.

[tex]SHOW ALL WORK 1. Find the mass in grams of 8 x 10^29 molecules of CO2.[/tex]


Answers

1) B    2) both a and c

The answer is celsius 

answer : (a) volume of the gas = 8.67 × [tex]10^{-3}[/tex]   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 × [tex]10^{-3}[/tex] moles

                                r =   0.082 l atm/k/mol

        find,     (a) volume of gas   and (b) second virial coefficient b at 300k.

formula used :             [tex]z=\frac{pv}{nrt}[/tex]

                          and     [tex]z=1+\frac{b}{v}[/tex]        

(a)       [tex]z=\frac{pv}{nrt}[/tex]      

          [tex]v=\frac{znrt}{p}[/tex]

                    = [tex]\frac{0.86\times 8.2\times[tex]10^{-3}[/tex]\times 0.082\times 300}{20}[/tex]

                    = 8.67 × [tex]10^{-3}[/tex]   l

(b)       [tex]z=1+\frac{b}{v}[/tex]

            [tex]b=(z-1)v[/tex]

                    = (0.00867-1) × 8.659

                    = - 8.5839 l/mole

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