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← ScienceWhich risk increases significantly when Van 't Hoff plots become non-linear?
A)Erroneous Keq temperature dependence✓
B)Unreliable activation energy estimation
C)Incorrect reaction rate limiting step
D)Catalyst deactivation becomes unpredictable
💡 Explanation
Non-linearity implies standard enthalpy, ΔH°, and entropy, ΔS°, are not constant because heat capacitance increases result in changes driving temperature dependency; therefore, estimates become unreliable rather than correctly predicting reaction rates under standard conditions.
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