Part 2: Identifying Substances with the Flame Test We've figured out what part of the salt causes the flame to change color, so now let's measure the wavelengths created with four metals.

Use the ruler under the "tools" icon in the upper right of the video player to measure the wavelengths of light released by each compound.

distance, luminosity, brightness, radius, chemical composition, and temperature

answer; talc and gypsum;

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