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GOB Chemistry
Learn the toughest concepts covered in your GOB - General, Organic, and Biological Chemistry class with step-by-step video tutorials and practice problems.
Energy, Rate and Equilibrium
Hess's Law
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Hess's Law involves the use of partial reactions in the determination of the overall enthalpy of reaction.
Hess's Law
1
concept
Hess's Law
3m
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2
example
Hess's Law Example 1
1m
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3
Problem
Calculate the ∆Hrxn for the following thermochemical equation:
When given the following:
A
-296.8 kJ
B
-148.4 kJ
C
148.4 kJ
D
296.8 kJ
4
concept
Hess's Law
2m
Play a video:
5
example
Hess's Law Example 2
5m
Play a video:
6
Problem
Calculate the ∆Hrxn for
Given the following set of reactions:
A
-494.4 kJ
B
-692.8 kJ
C
494.4 kJ
D
-346.4 kJ
7
Problem
Calculate the ∆Hrxn for
Given the following reactions:
A
-177.85 kJ
B
-355.73 kJ
C
-258.36 kJ
D
-487.27 kJ