Gibbs Free Energy (often called $G$) is really important for understanding balance in chemical reactions.

Here’s what you need to know:

• Spontaneity: If $ΔG$ is less than 0 (that’s $ΔG < 0$), it means the reaction happens by itself. It’s moving toward balance or equilibrium.

• Equilibrium Condition: When the reaction is in balance, $ΔG$ equals 0 (so $ΔG = 0$). This means nothing is changing.

• Temperature and Pressure: These two things can change $G$, which can affect where that balance point is.

Knowing about $G$ helps us predict how reactions will act in different situations. This is super helpful for engineers who want to create efficient processes. It’s a strong tool in understanding how heat and energy work in chemistry!