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← ScienceWhich outcome occurs at equilibrium when a closed-system reversible reaction is perturbed, changing initial species concentrations?
A)Shift neutralizes stress, new constants
B)Enthalpy change reaches zero joules
C)Rate constants remain unchanged, shifts✓
D)Kinetics surpass thermodynamic favorability
💡 Explanation
The rate constants remain unchanged when at equilibrium despite concentration changes due to the Law of Mass Action; therefore, the equilibrium will shift to a new composition, rather than the rate constants changing because they are temperature-dependent, not concentration-dependent.
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