QUESTION 2 A hydrocarbon undergoes combustion according to the following thermochemical equation: 2C8H18(1) + 2502(g) → 16CO2(g) + 18H20(1), AH°rxn=-11,020 kJ/mol. Given that AH°f[CO2(g)] =-393.5 kJ/mol and AH°f[H2O(1)] =-285.8 kJ/mol, calculate the standard enthalpy of formation of C3H18(1) (kJ/mol). Write answer in decimal form, to one decimal place. If answer is negative, make sure to include the negative sign in answer.

QUESTION 2 A hydrocarbon undergoes combustion according to the following thermochemical equation: 2C8H18(1) + 2502(g) → 16CO2(g) + 18H20(1), AH°rxn=-11,020 kJ/mol. Given that AH°f[CO2(g)] =-393.5 kJ/mol and AH°f[H2O(1)] =-285.8 kJ/mol, calculate the standard enthalpy of formation of C3H18(1) (kJ/mol). Write answer in decimal form, to one decimal place. If answer is negative, make sure to include the negative sign in answer.

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter9: Energy And Chemistry

Section: Chapter Questions

Problem 9.55PAE: 9.55 Hydrogen gas will react with either acetylene or ethylene gas. The thermochemical equations for...

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