6) Heat of combustion of Octane, C8H18 is 5470 kJ/mol. If 12g of Octane is combusted in a free moving piston, volume wil

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6 Heat Of Combustion Of Octane C8h18 Is 5470 Kj Mol If 12g Of Octane Is Combusted In A Free Moving Piston Volume Wil 1 (30.5 KiB) Viewed 23 times

6) Heat of combustion of Octane, C8H18 is 5470 kJ/mol. If 12g of Octane is combusted in a free moving piston, volume will increase in 1.2 liters at a constant pressure. Calculate total energy. heat and work put into the piston. (1 L atm = 101.33J) A) 233.8 kJ B) 100.37kJ C) 76.21kJ D) 574.47kJ 7) Consider following reactions and AH values: C₂H2(g) + 2H2(g) C₂H6(g) H₂O(g) H₂(g) + 1/2O2 (g) C₂He(g) + 7/2O₂(g) 2CO₂(g) + 3H₂O(g) Find the AH for the reaction below, 2CO₂(g) + H₂O(g) → C₂H2(g) + 5/2O₂(g) A) 681kJ B) 314kJ C) 548kJ D) 119kJ ΔΗ =-144.8 kJ = 89.2 kJ AH AH = -347.6 kJ