# If the reaction is spontaneous, is it the ΔS surroundings that is always positive or ΔS universe? [closed]

If the reaction is spontaneous, is it the ΔS surroundings that are always positive or ΔS universe?

I tried researching this on Google. However, the answers that I have found vary with different explanation.

• Hint: What would Delta G say about that? Consider spontaneous but endothermic processes. Jan 8, 2022 at 11:21
• It can be also said $$\Delta S_\mathrm{universe} \ge - \frac { \Delta G_\mathrm{r}} { T}$$ for constant T,p. Jan 8, 2022 at 12:07