CalcDepo

Equilibrium Constant from ΔG Calculator

Find K from standard Gibbs free energy.

Inputs

Results

Equilibrium constant K604,435.4
log10(K)5.78135

Chart

Not what you need? Search by intent

Describe what you want to find — “equilibrium from gibbs” — and jump to the right calculator.

How to use the equilibrium constant from δg calculator

Find K from standard Gibbs free energy. Enter standard δg°, temperature in the fields above; the equilibrium constant k, log10(k) are computed instantly and plotted on the chart so you can see how the answer changes.

Common searches this calculator answers include “equilibrium from gibbs”, “k from delta g”, “reaction favorability”, “calculate equilibrium constant from δg”, “find equilibrium constant k”.

Formula

Equilibrium constant K = exp(-G × 1000 / (RGAS × T))
log10(K) = log10([Equilibrium constant K])

Variables

  • G — Standard ΔG° (kJ/mol)
  • T — Temperature (K)

Worked example

With standard δg° = -33 kJ/mol, temperature = 298.15 K, the calculator gives equilibrium constant k ≈ 604,435.4; log10(k) ≈ 5.78135.

Frequently asked questions

What is the equilibrium constant from δg calculator used for?

Find K from standard Gibbs free energy. It helps with questions such as “equilibrium from gibbs”, “k from delta g”, “reaction favorability”.

What is the formula for the equilibrium constant from δg calculation?

Equilibrium constant K = exp(-G × 1000 / (RGAS × T)). log10(K) = log10([Equilibrium constant K]). Here G is standard δg° (kJ/mol), T is temperature (K).

What inputs do I need for the equilibrium constant from δg calculator?

You need standard δg° in kJ/mol, temperature in K. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.

How do I use the equilibrium constant from δg calculator?

Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.

Is the equilibrium constant from δg result exact?

Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.

Related calculators

More in General Chemistry: Molar Mass · Grams to Moles · Moles to Grams · Avogadro's Number Particle · Percent Composition by Mass · Empirical Formula Ratio · Limiting Reagent · Theoretical Yield