Which of the Following is Not True

Question

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 ΔG. C) Speed of a reaction is a kinetic parameter, not a thermodynamic one. D) A reaction with a positive ΔG⁰ can never happen

Accepted Answer

If a reaction has a positive ΔG⁰, it means that the reaction is non-spontaneous at standard conditions. However, it is still possible for the reaction to occur under non-standard conditions where the ΔG may be negative. Therefore, it is not true that a reaction with a positive ΔG⁰ can never happen.