Answer to Question #144430 in General Chemistry for martha

Question #144430

isooctane burns in air to give water and carbon dioxide (drH0=-10992kJ/mol-rxn). what is the enthalpy change if you burn 1.00L of isooctane?

Expert's answer

C8H18 + 12.5 O2 = 8CO2 + 9H2O

1000 x 0.69 = 690 g.

690 x 10992/114.22 = 66 402,3814

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