Concept explainers
Interpretation:
The information provided by sign of
Concept introduction:
A reaction has negative value of
A reaction has positive value of
Answer to Problem 72A
As
The chemical potential energy after the reaction will be less than chemical potential energy before the reaction.
Explanation of Solution
A reaction is endothermic if enthalpy of products is greater than reactants and exothermic when enthalpy of products is less than reactants.
As
And
Therefore, chemical potential energy will decrease when products are formed from reactants.
The sign of
Chapter 15 Solutions
Chemistry: Matter and Change
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