Please answer the following question: The combustion of isoctane reaction produces -5099.5 kJ of heat per mole of C8H18(g) consumed, under standard conditons. The enthalpy of formation (DHf) for CO2(g) and H2O(g) are -393.5 kJ/mol and -241.8 kJ/mol, repspectively. Find the standard enthalpy of

Organic Chemistry
8th Edition
ISBN:9781305580350
Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Chapter2: Alkanes And Cycloalkanes
Section: Chapter Questions
Problem 2.57P: Following are heats of combustion per mole for methane, propane, and 2,2,4-trimeth-ylpentane. Each...
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  1. The combustion of isoctane reaction produces -5099.5 kJ of heat per mole of C8H18(g) consumed, under standard conditons. The enthalpy of formation (DHf) for CO2(g) and H2O(g) are -393.5 kJ/mol and -241.8 kJ/mol, repspectively. Find the standard enthalpy of formation (DHf) of this isomer of C8H18(g)? (Show work)

C8H18(g) + O2(g) -> 8CO2(g) + 9H2O(g)  DHrxn = -5099.5 kJ

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