Which of the following is not true? A) In thermodynamics, spontaneous does not mean instantaneous or even fast. B) If a reaction is spontaneous then it has a negative Δ G. C) Speed of a reaction is a kinetic parameter, not a thermodynamic one. D) A reaction with a positive Δ G⁰ can never happen

Question

Quizplus · Accepted Answer

The statement D is incorrect because a reaction with a positive ΔG can occur under certain conditions, such as being driven by an external energy source or coupled with another reaction that has a sufficiently negative ΔG to make the overall process spontaneous. Thermodynamics predicts the direction and extent of chemical reactions under equilibrium conditions, but it does not preclude reactions with positive ΔG from happening, especially when non-equilibrium conditions are applied.

Which of the Following Is Not True