A combustion chamber is sometimes designed to keep pressure constant along its length. This is done by varying cross-sectional area as heat is added. For a case where the heat added per mass of the combustion gases from inlet (station 1) to exit (station 2) is q1->2 = 1x106 J/kg, find the required cross-sectional area at the exit for such a case (where pressure is kept constant)? Assume inviscid (frictionless) flow. Let: Inflow static pressure = 200,000 N/m² Inflow static temperature = 1000 K Inflow static density = 0.481 kg/m³ Inflow axial velocity = 100 m/s Inflow cross-sectional area = 0.5 m² Combustion gases (γ = 1.2, MW = 20 g/mol)