200 mol/s of ethane gas and

60% excess oxygen at 25°C and 1 atm is fed to a furnace and partial combustion

occurs in the furnace. The product stream at 25°C and 1 atm discharges from the

furnace. 200 mol/s water liquid is produced from the combustion. By using the

information from the Important Appendix, determine the standard heat of

reaction.