Gibbs-Helmholtz equation calculator

Discover the Gibbs-Helmholtz Equation Calculator, a quintessential tool unlocking the doors to the intriguing world of thermodynamics.

• How to Use the Gibbs-Helmholtz Equation Calculator?
• What is the Gibbs-Helmholtz Equation?
• Formulas and Examples

How to Use the Gibbs-Helmholtz Equation Calculator?

Navigating through the calculator is a breeze! Follow the guide below for accurate results:

• ΔH (Enthalpy Change) - Input the enthalpy change of the reaction in Joules per mole (J/mol).
• T (Temperature) - Insert the absolute temperature in Kelvin (K), ensuring it’s above 0 K.
• ΔS (Entropy Change) - Enter the entropy change in Joules per mole per Kelvin (J/(mol·K)).
• Calculate - Calculation would be made automatically and you will get instant result.

What is the Gibbs-Helmholtz Equation?

The Gibbs-Helmholtz equation is a fundamental concept in thermodynamics, representing the relationship between enthalpy, entropy, and temperature. It’s given by:

Here, ΔG denotes the Gibbs free energy change, signaling whether a reaction is spontaneous or non-spontaneous. This equation offers a window into the balance of energy transformations, applicable across various scientific fields.

Formulas and Examples

Understanding the Gibbs-Helmholtz equation is pivotal for exploring chemical reactions. Here are practical examples and interpretations:

Example:

• ΔH: -200 J/mol
• T: 298 K
• ΔS: 0.1 J/(mol·K)
• You will get ΔG = 170.2 J/mol

The calculator is an invaluable companion for everyone, from students to researchers, providing insights and elucidating the complexities of thermodynamics.