A gaseous mixture of ethane (C2H6) and the theoretical amount of air at 25°C, 1 atm enters a reactor operating at steady state and burns completely. Combustion products exit at 627°C, 1 atm. Heat transfer from the reactor takes place at an average surface temperature of 327°C. Determine a. the rate of entropy production within the reactor, in kJ/K per kmol of fuel, b. the rate of exergy destruction within the reactor, in kJ per kmol of fuel. Kinetic and potential energy effects are negligible. Let T0 = 25°C.