Methane (CH4) enters a steady flow adiabatic combustion chamber at 100 kPa and 25oC. It is burned

Question:

Methane (CH4) enters a steady flow adiabatic combustion chamber at 100 kPa and 25oC. It is burned with 100% excess air that also enters at 25oC and 100 kPa. Assuming complete combustion, determine
(a) The temperature (T) of the products,
(b) The entropy generation ( S gen ) and
(c) The reversible work. Assume that T0 = 298 K and the products leave the combustion chamber at 100 kPa.