With the upcoming presidential election, Ira decided to create a survey to find out who might win. He carefully created a vali
survey and gave it to five of his closest friends. He then tallied the results from the surveys and published his data in the sche
newspaper. Which of these would be a reason why Ira's results are not valid?
A)
The survey was not good enough
B)
The sample size of five was too small.
C)
There is not problem; the results are valid
D)
He only published his data in a school newspaper.

B)

The sample size of five was too small.

Explanation:

the correct answer would be d. hope this !

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