A gaseous hydrocarbon reacts completely with oxygen gas to form carbon dioxide and water vapor Given the following data, determine Hof for the hydrocarbon Hrxn 2044 5 kJ mol Hof (CO2) 393 5 kJ mol Hof (H2O) 242 kJ mol Density of CO2 and H2O mixture at 1 atm, 200oC 0 751 g L The Density of the hydro...

C x H y O 2 x CO 2 y 2 H 2 O x 3935 y 2 242 20445 3935 x 121 y 20 ...

A gaseous hydrocarbon reacts completely with oxygen gas to form carbon dioxide and water vapor. Given the

Question:

A gaseous hydrocarbon reacts completely with oxygen gas to form carbon dioxide and water vapor. Given the following data, determine ΔHof for the hydrocarbon: ΔHrxn = –2044.5 kJ/ mol ΔHof (CO2) = –393.5 kJ/ mol ΔHof (H2O) = –242 kJ/ mol Density of CO2 and H2O mixture at 1 atm, 200oC = 0.751 g/ L The Density of the hydrocarbon is less than the Density of Kr at the same conditions.