Gibbs Free Energy Change

📊 advanced

$$\Delta G = \Delta H - TDelta S$$

Used to predict the spontaneity of a chemical reaction.

Variables & Units

$Delta G$

Change in Gibbs Free Energy

Unit: $J/mol$

$Delta H$

Change in Enthalpy

Unit: $J/mol$

$T$

Absolute Temperature

Unit: Kelvin ($K$)

$Delta S$

Change in Entropy

Unit: $J/(mol cdot K)$

Key Information

📐 Derived From

Second Law of Thermodynamics.

💡 Example

Reaction is spontaneous if $Delta G < 0$.

🔧 Applications

Biochemistry and industrial chemical synthesis.

⚠️ Constraints

Constant temperature and pressure.

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