2) Use the chemical reaction below to answer the following questions. CH4 + 2O2 → CO2 + 2H2O

2a) How many grams of water vapor will be produced when 87.1 Liters of oxygen gas reacts with excess methane?

2b) How many liters of methane is needed to produce 15.3 liters of carbon dioxide?

2c) How many liters of water vapor will be produced if 99.6 grams of oxygen are consumed?

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