Given the following reactions and their molar enthalpies: 2H2(g) + O2(g) ---> 2H20(1) AH = -483.6 kJ %3D 302(g) > 203(g) AH = -284.6 kJ ---> Find the AH of this reaction: O3(g) + 3H2(g) 3H20(1) ---> O -583.1 kJ O +768.2 kJ +583.1 kJ -768.2 kJ O 526.4 kJ

Given the following reactions and their molar enthalpies: 2H2(g) + O2(g) ---> 2H20(1) AH = -483.6 kJ %3D 302(g) > 203(g) AH = -284.6 kJ ---> Find the AH of this reaction: O3(g) + 3H2(g) 3H20(1) ---> O -583.1 kJ O +768.2 kJ +583.1 kJ -768.2 kJ O 526.4 kJ

Chemistry by OpenStax (2015-05-04)

1st Edition

ISBN:9781938168390

Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Chapter5: Thermochemistry

Section: Chapter Questions

Problem 17E: Would the amount of heat absorbed by the dissolution in Example 5.6 appear greater, lesser, or...

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Question

Given the following reactions and their molar enthalpies:
2H2(g) + O2(g)
---> 2H20(1) AH = -483.6 kJ
%3D
302(g)
> 203(g)
AH = -284.6 kJ
--->
Find the AH of this reaction: O3(g) + 3H2(g)
3H20(1)
--->
O -583.1 kJ
O +768.2 kJ
+583.1 kJ
-768.2 kJ
O 526.4 kJ

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