In a vessel with a volume of 10L, under isothermal and isobaric conditions, the following elementary reaction takes place at 215C and 6 atm: C2H4+21O2C2H4O Ethylene and oxygen are put into the reaction vessel in stoichiometric proportions. Accordingly, calculate the following questions: a) Find the initial concentrations and partial pressures of C2H4 and O2. b) For 75%C2H4 conversion, calculate the concentrations and partial pressures of all components and the reactor volume. c) Create the reaction rate expression in terms of conversion; and calculate the reaction rate for 75% conversion (k=2.5102L0.5/mol0.5min)