Use either raoult's law or henry's law to solve the following problems: i. a gas containing i mole% ethane is in contact with water at 20°c and 20 atm. estimate the mole fraction of dissolved ethane. 2. an equimolar liquid mixture of benzene (b) and toluene (t) is in equilibrium with its vapour at 30 °c. what is the system pressure and the composition of the vapour?

where are the choice options?

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.

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