Question

What does reversing a reaction do to the standard free energy of formation?

A) Doubles it
B) Negates it
C) No effect
D) Squares it

Answer 1

it changes it form if it was negative it would be positive.

Answer 2

Reversing a reaction changes the sign of the standard free energy change (ΔG°).

Step-by-step explanation:

When a reaction is reversed, the sign of the standard free energy change (ΔG°) is also reversed. If the original reaction has a positive ΔG°, meaning it is not spontaneous, reversing the reaction will make ΔG° negative, indicating that the reaction is now spontaneous. Conversely, if the original reaction has a negative ΔG°, meaning it is spontaneous, reversing the reaction will make ΔG° positive, indicating that the reverse reaction is not spontaneous.