Determine the spontaneity of the dissociation of ammonium nitrate (NH4NO3), the compound used in cold packs. Interpret the value obtained from the calculations. NH4NO3 (s) ---> NH4 + (aq) + NO3 – (aq) Substance NH4NO3 (s) NH4 + (aq) NO3 – (aq) ΔH0f (kJ/mol) -365.6 -132.5 -207.4 S0 (J/mol-K) 151.1 113.0 146.4 Hint: Calculate first ΔH0, then ΔS0, and finally ΔG0.
Determine the spontaneity of the dissociation of ammonium nitrate (NH4NO3), the compound used in cold packs. Interpret the value obtained from the calculations. NH4NO3 (s) ---> NH4 + (aq) + NO3 – (aq) Substance NH4NO3 (s) NH4 + (aq) NO3 – (aq) ΔH0f (kJ/mol) -365.6 -132.5 -207.4 S0 (J/mol-K) 151.1 113.0 146.4 Hint: Calculate first ΔH0, then ΔS0, and finally ΔG0.
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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Determine the spontaneity of the dissociation of ammonium nitrate (NH4NO3), the compound used in cold packs. Interpret the value obtained from the calculations.
NH4NO3 (s) ---> NH4 + (aq) + NO3 – (aq)
| Substance | NH4NO3 (s) | NH4 + (aq) | NO3 – (aq) |
| ΔH0f (kJ/mol) | -365.6 | -132.5 | -207.4 |
| S0 (J/mol-K) | 151.1 | 113.0 | 146.4 |
Hint: Calculate first ΔH0, then ΔS0, and finally ΔG0.
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