If A H;° is a positive number then O that molecule has less chemical potential energy stored in its' bonds than the elemnets it was formed from. O that molecule has more chemical potential energy stored in its' bonds than the elemnets it was formed from. that molecule has the same amount of chemical potential energy stored in its' bonds as the elemnets it was formed from.
If A H;° is a positive number then O that molecule has less chemical potential energy stored in its' bonds than the elemnets it was formed from. O that molecule has more chemical potential energy stored in its' bonds than the elemnets it was formed from. that molecule has the same amount of chemical potential energy stored in its' bonds as the elemnets it was formed from.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:**Transcription for Educational Website:**
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**Question:**
If \( \Delta H_f^0 \) is a positive number then ____________________.
**Options:**
- ○ that molecule has less chemical potential energy stored in its bonds than the elements it was formed from.
- ○ that molecule has more chemical potential energy stored in its bonds than the elements it was formed from.
- ○ that molecule has the same amount of chemical potential energy stored in its bonds as the elements it was formed from.
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**Explanation:**
The symbol \( \Delta H_f^0 \) represents the standard enthalpy of formation of a compound. If \( \Delta H_f^0 \) is positive, it indicates that the formation of the compound from its constituent elements is an endothermic process, meaning that it absorbs heat. This suggests that the compound has more chemical potential energy stored in its bonds than the elements it was formed from.
Expert Solution

Step 1
Heat energy is released during exothermic reaction and ΔHf° is a negative value.
Heat energy is absorbed during endothermic reaction and ΔHf° is a positive value.
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