I need help with step 2 please and thank you!

Methane (CH4) at 298 K, 1 atm enters a furnace operating at steady state and burns completely with 220% of theoretical air entering at 400 K, 1 atm. The products of combustion exit at 500 K, 1 atm. The flow rate of the methane is 1 kg/min. Kinetic and potential energy effects are negligible and air can be modeled as 21% O2 and 79% N2 on a molar basis. Step 1 Your answer is correct. Determine the dew point temperature of the products, in K. = 315.3 K Hint Attempts: 2 of 3 used Step 2 Determine the rate of heat transfer for a control volume enclosing the reacting gases, in kW. Qev = i kW