How does the Gibbs free energy equation differ when applied to membrane diffusion compared to chemical reactions?

• A. Delta G naught is always positive for membrane diffusion.
• B. Delta G naught is negative for membrane diffusion due to bond formation.
• C. Delta G naught is zero for membrane diffusion because no bonds are formed or broken.
• D. Delta G naught is irrelevant for both membrane diffusion and chemical reactions.

Answer: (C)