A reaction has ΔH = +60 kJ/mol and ΔS = +200 J/(mol·K).
Above what temperature is the reaction spontaneous?
- A
200 K
- B
1000 K
- C
60 K
- Dcheck_circle
300 K
Explanation
At ΔG = 0: T = ΔH/ΔS = 60000 J / 200 J/K = 300 K. Above 300 K, ΔG < 0.
Gibbs Free Energy and Thermodynamic Favorability
AP Chemistry· difficulty 4/5
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