Many cigarette lighters contain liquid butane, C4H10(l), which has a ∆Hƒ = -147.6 kJ/mol. Burned in oxygen (O2 , ∆Hƒ = 0.0 kJ/mol), it produces CO2 gas (∆Hƒ =-393.5 kJ/mol) and liquid water (H2O, ∆Hƒ =-285.8 kJ/mol). Using enthalpies of formation, how much heat is generated at a constant pressure reaction when 1.0 g of butane is completely combusted in air. (Write the equation for the process first!)
Many cigarette lighters contain liquid butane, C4H10(l), which has a ∆Hƒ = -147.6 kJ/mol. Burned in oxygen (O2 , ∆Hƒ = 0.0 kJ/mol), it produces CO2 gas (∆Hƒ =-393.5 kJ/mol) and liquid water (H2O, ∆Hƒ =-285.8 kJ/mol). Using enthalpies of formation, how much heat is generated at a constant pressure reaction when 1.0 g of butane is completely combusted in air. (Write the equation for the process first!)
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
Section: Chapter Questions
Problem 1.1P
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Many cigarette lighters contain liquid butane, C4H10(l), which has a ∆Hƒ = -147.6 kJ/mol. Burned in oxygen (O2 , ∆Hƒ = 0.0 kJ/mol), it produces CO2 gas (∆Hƒ =-393.5 kJ/mol) and liquid water (H2O, ∆Hƒ =-285.8 kJ/mol). Using enthalpies of formation, how much heat is generated at a constant pressure reaction when 1.0 g of butane is completely combusted in air. (Write the equation for the process first!)
A
24.6 is emitted
B
49.2 kJ is emitted
C
24.6 kJ is absorbed
D
49.2 kJ is absorbed
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