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Given the following information, use Hess’s law to calculate ΔH for the reaction: 2C4H10(g) + 13O2(g)  → 8CO2(g) + 10H2O(g)   4C(s) + 5H2(g)  → C4H10(g)                                              ΔH = –126 kJC(s) + O2(g) → CO2(g)                                                   ΔH = –393.5 kJH2(g) + ½ O2(g) → H2O(g)                                             ΔH = –241.8 kJ -509 kJ -5818 kJ -5314 kJ -761.8 kJ

Given the following information, use Hess’s law to calculate ΔH for the reaction: 2C4H10(g) + 13O2(g)  → 8CO2(g) + 10H2O(g)   4C(s) + 5H2(g)  → C4H10(g)                                              ΔH = –126 kJC(s) + O2(g) → CO2(g)                                                   ΔH = –393.5 kJH2(g) + ½ O2(g) → H2O(g)                                             ΔH = –241.8 kJ -509 kJ -5818 kJ -5314 kJ -761.8 kJ

Chemistry: Matter and Change
Chemistry: Matter and Change
1st Edition
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Chapter15: Energy And Chemical Change
Section: Chapter Questions
Problem 92A
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Given the following information, use Hess’s law to calculate ΔH for the reaction:

2C4H10(g) + 13O2(g)  → 8CO2(g) + 10H2O(g)

 

4C(s) + 5H2(g)  → C4H10(g)                                              ΔH = –126 kJ
C(s) + O2(g) → CO2(g)                                                   ΔH = –393.5 kJ
H2(g) + ½ O2(g) → H2O(g)                                             ΔH = –241.8 kJ


-509 kJ
-5818 kJ
-5314 kJ
-761.8 kJ
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