6.48 Diamond and graphite are two crystallıne forms of 1 atm and 25°C, diamond changes to graphite so slowly that the enthalpy change of the process must be obtained indirectly. Using equations from the numbered list below, determine AH for C(diamond) C(graphite) CO(g) AH = -395.4 kJ (1) C(diamond) + O,(g) – (2) 2CO,(g) – 2C0(g) + 0,(g) (3) C(graphite) + O2(8) – (4) 2CO(g) > ΔΗ- 566.0 kJ %3D CO,(g) AH = -393.5 kJ %3D C(graphite) + CO,(g) AH = -172.5 kJ %3D
6.48 Diamond and graphite are two crystallıne forms of 1 atm and 25°C, diamond changes to graphite so slowly that the enthalpy change of the process must be obtained indirectly. Using equations from the numbered list below, determine AH for C(diamond) C(graphite) CO(g) AH = -395.4 kJ (1) C(diamond) + O,(g) – (2) 2CO,(g) – 2C0(g) + 0,(g) (3) C(graphite) + O2(8) – (4) 2CO(g) > ΔΗ- 566.0 kJ %3D CO,(g) AH = -393.5 kJ %3D C(graphite) + CO,(g) AH = -172.5 kJ %3D
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter6: Thermochemisty
Section: Chapter Questions
Problem 6.119QP: Calcium oxide, CaO, is prepared by heating calcium carbonate (from limestone and seashells)....
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