The standard heats of the following combustion reactions have been determined experimentally: 1. C,H, + O2 → 2CO2 + 3H2O : AH; = -1559.8 kJ 2. C+ O2 → CO2: AH = -393.5 kJ 3. H2 + O2 → H20: AHg=-285.8 kJ Use Hess's law and the given heats of reaction to determine the standard heat of the reaction 4. 2C+ 3H2 → C,H, : AH =?

Introduction to Chemical Engineering Thermodynamics
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Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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Chapter1: Introduction
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The standard heats of the following combustion reactions have been determined
experimentally:
1. C,Hs + O2 → 2CO2 + 3H2O : AH; = -1559.8 kJ
2. C+ O2 → CO2 : AH = -393.5 kJ
3. H2 + O2 → H2O: AHg=-285.8 kJ
Use Hess's law and the given heats of reaction to determine the standard heat of the
reaction
4. 2C + 3H2 → C2H6 : AH =?
Transcribed Image Text:The standard heats of the following combustion reactions have been determined experimentally: 1. C,Hs + O2 → 2CO2 + 3H2O : AH; = -1559.8 kJ 2. C+ O2 → CO2 : AH = -393.5 kJ 3. H2 + O2 → H2O: AHg=-285.8 kJ Use Hess's law and the given heats of reaction to determine the standard heat of the reaction 4. 2C + 3H2 → C2H6 : AH =?
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