1. Determine the standard heat at 650C for the following reaction: 6NO2(g)+8NH3(g)7N2(g)+12H2O(g) 2. Ethane (C2H6) is burned with 50% excess air. The percentage conversion of the ethane is 90%. Of the ethane burned, 25% reacts to form CO and the balance to form CO2. The reactants enter the reactor at 313 K and the products leave the reactor at 750K. Calculate the heat transferred to/from the reactor (in kJ per mole of fuel)