AP Chemistrymediummcq1 pt
A reaction has ΔH° = −80 kJ and ΔS° = −100 J/K. Above what temperature is it unfavored?
A.800 K
B.80 K
C.400 K
D.8000 K
Explanation
Core Concept
ΔG° = 0 at T = ΔH°/ΔS° = 80,000/100 = 800 K. Below 800 K the reaction is favored; above, the entropy term dominates and it flips.
Correct Answer
A800 K
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