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Hess's law

Hess's law

Physical Chemistry
Physical Chemistry
2nd Edition
ISBN:9781133958437
Author:Ball, David W. (david Warren), BAER, Tomas
Publisher:Ball, David W. (david Warren), BAER, Tomas
Chapter2: The First Law Of Thermodynamics
Section: Chapter Questions
Problem 2.83E: Benzoic acid, C6H5COOH, is a common standard used in bomb calorimeters, which maintain a constant...
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Use Hess's law to calculate the enthalpy of the following reaction (given the intermediate steps 1, 2 and 3 listed below:
Use Hess's Law to calculate the enthalpy of the following reaction (given the intermediate steps 1, 2 and 3 listed below: C2H6 (E) C,HA (e) +H2 (g) 4CO2 (2) + 6H2O () 2H,0 (1) 2COe) + 2H2O (s) AH = - 3120 kJ (1) 2C2H6 (g) + 702 (g) (2) 2H2 (gl) + 02(g) (3) CH4 (g) + 302 (g) AH, = - 572 kJ AH3 = -1411 kJ Your answer should have the following format a) Changes to AH, (if no change occurs write x 1 for your answer) b) Changes to AH2 (if no change occurs write x 1 for your answer) c) Changes to AH3 (if no change occurs write x 1 for your answer) d) AH for the overall reaction Q rio F10 F11 F8 F9 & 4 (7 8 19 立
Transcribed Image Text:Use Hess's Law to calculate the enthalpy of the following reaction (given the intermediate steps 1, 2 and 3 listed below: C2H6 (E) C,HA (e) +H2 (g) 4CO2 (2) + 6H2O () 2H,0 (1) 2COe) + 2H2O (s) AH = - 3120 kJ (1) 2C2H6 (g) + 702 (g) (2) 2H2 (gl) + 02(g) (3) CH4 (g) + 302 (g) AH, = - 572 kJ AH3 = -1411 kJ Your answer should have the following format a) Changes to AH, (if no change occurs write x 1 for your answer) b) Changes to AH2 (if no change occurs write x 1 for your answer) c) Changes to AH3 (if no change occurs write x 1 for your answer) d) AH for the overall reaction Q rio F10 F11 F8 F9 & 4 (7 8 19 立
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