A gas mixture containing 90.0 mole\% N2 and the balance n-hexane flows through a pipe at a rate of 100.0m3/h. The pressure is 1.50 atm absolute and the temperature is 140.0C. a. What is the molar flow rate of the gas? kmol/h b. To what temperature would the gas have to be cooled at constant pressure in order to begin condensing hexane? C c. To what temperature would the gas have to be cooled at constant pressure in order to condense 85.0% of the hexane? C