Explanation:

Gibbs Free Energy Equation:
The Gibbs free energy (G) is defined by the equation G = H - T S, where H is the enthalpy, T is the temperature, and S is the entropy of the system.

Components of the Gibbs Free Energy Equation:
- Enthalpy (H): It represents the total energy of a system and is the sum of the internal energy (U) and the product of pressure and volume.
- Temperature (T): It is the measure of the average kinetic energy of particles in a system.
- Entropy (S): It is a measure of the disorder or randomness of a system.

Interpretation:
- The Gibbs free energy equation is used to determine whether a chemical reaction is spontaneous or not.
- If G is negative, the reaction is spontaneous and can occur without external intervention.
- If G is positive, the reaction is non-spontaneous and requires external energy input to occur.
- If G is zero, the system is at equilibrium.

Significance of Gibbs Free Energy:
- It helps in predicting the direction and feasibility of chemical reactions.
- It is used in various fields including chemistry, thermodynamics, and biochemistry.
- It provides valuable insights into the energy changes occurring in a system.
In conclusion, the Gibbs free energy equation (G = H - T S) is a fundamental concept in thermodynamics that helps in understanding the spontaneity of chemical reactions and the energy changes in a system.