Calculate the AHO for the reaction Cbte + 2H, → CHAG) (graphite) '2(g) from the following enthalpy changes: AH = -393.5 kJ %3D Carachite + O, → CO. 2(g) 2(g) AH = -571.6 kJ → 2H,0) + 2H,0 2H, + O219) 2(g) AH = -890.4 kJ CHo + 20, → CO. 2(g) '4(g) 2(g)

Chemistry: Principles and Practice
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ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
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Chapter5: Thermochemistry
Section: Chapter Questions
Problem 5.46QE
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3. Calculate the AHO for the reaction Caraphite)
+ 2H,
CH
2(g)
4(g)
rxn
from the following enthalpy changes:
CO2
AH = -393.5 kJ
%3D
+ O2
(graphite)
2(g)
2(g)
AH = -571.6 kJ
2H,
+ O,
2(g)
→ 2H,0
2(g)
AH = -890.4 kJ
+ 2H,0)
%3D
CH,
4(g)
+ 20,
→ CO.
2(g)
2(g)
Transcribed Image Text:3. Calculate the AHO for the reaction Caraphite) + 2H, CH 2(g) 4(g) rxn from the following enthalpy changes: CO2 AH = -393.5 kJ %3D + O2 (graphite) 2(g) 2(g) AH = -571.6 kJ 2H, + O, 2(g) → 2H,0 2(g) AH = -890.4 kJ + 2H,0) %3D CH, 4(g) + 20, → CO. 2(g) 2(g)
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