Acetylene (C2H2) is hydrogenated to form ethane (C2H6). The feed to the reactor contains 1.5 mol H2/mol C2H2.

a. Determine the limiting reactant.

b. Calculate the percentage by which the other reactant is in excess. (33.3%)

c. Calculate the mass feed rate of hydrogen (kg/s) required to produce 4 x 106 metric tons of ethane per year, assuming the reaction goes to completion and that the process operates for 24 hours a day and 300 days a year. (20.6 kg H2/s)