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Problem- For a particular isomer of C8H18, the following reaction produces 5104.1 kJ of heat per mole of C8H18(g) consumed, under standard conditions.

c8h18(g) + 25/2O2(g) ---> 8CO2(g)+9H2O(g)

DeltaHrxn= -5104.1 kJ

What is the standard enthalpy of formation of this isomer of C8H18(g)?

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