Calculating Gibbs Free Energy

[LNgo 1G]

When calculating Gibbs free energy, do you take into account stoichiometric coefficients?

[LBacker_2E]

deltaG= -nFE: You only take into account the moles of electrons (the stoichiometric coefficient in front of the electron), because the coefficients in front of the compounds do not affect Ecell.

[Nick Fiorentino 1E]

G=H-TS

Enthalpy (H) and entropy (S) take into account stoichiometric coefficients, so I guess you could say that G requires you take into account stoichiometric coefficients. However, when calculating G in regards to electrochemistry, you do not take them into account.

[005384106]

In what situation would S(total) ever be = 0?

[AniP_2D]

When calculating deltaG using the products minus reactants method, you would have to take into account the stoichiometric coefficients.

[WGaines_2E]

In what situation would S(total) ever be = 0?

S can only be 0 for a molecule at 0K which is theoretically unacheivable. If is is 0 between reactants and products in a reaction, that is because they had the same entropy value with opposite signs (coincidence)

[005384106]

In what situation would S(total) ever be = 0?

S can only be 0 for a molecule at 0K which is theoretically unacheivable. If is is 0 between reactants and products in a reaction, that is because they had the same entropy value with opposite signs (coincidence)

I just wanted to clarify to make sure I understood this, can reactants and products have different entropy values?