For a particular isomer of C 8H18, the following reaction produces 5104.1 kJ of heat per mole of C8H18(g) consumed, under standard conditions.
C8H18(g) + 25/2 O2(g) → 8 CO2(g) + 9 H2O(g) ΔH°rxn = -5104.1 kJ
What is the standard enthalpy of formation of this isomer of C 8H18(g)?
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