Determine the enthalpy of combustion of liquid octane (C8H18) at 25°C and 1 atm. Assume the water in the products is in the liquid form.

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
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Determine the enthalpy of combustion of liquid octane (C8H18) at 25°C and 1 atm. Assume the water in the products is in the liquid form. 

Properties The enthalpy of formation at 25°C and 1 atm is -393,520
kJ/kmol for CO₂, -285,830 kJ/kmol for H₂O(€), and -249,950 kJ/kmol for
C8H₁8() (Table A-26).
C3H18 (C)
25°C, 1 atm
AIR
25°C, 1 atm
hc=Hprod-Hreact
25°C
1 atm
CO₂
H₂O(l)
N₂
Transcribed Image Text:Properties The enthalpy of formation at 25°C and 1 atm is -393,520 kJ/kmol for CO₂, -285,830 kJ/kmol for H₂O(€), and -249,950 kJ/kmol for C8H₁8() (Table A-26). C3H18 (C) 25°C, 1 atm AIR 25°C, 1 atm hc=Hprod-Hreact 25°C 1 atm CO₂ H₂O(l) N₂
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