Gibbs Free Energy (ΔG = ΔH − TΔS)
Calculate Gibbs Free Energy (ΔG = ΔH − TΔS) instantly with the exact formula and a worked example.
Gibbs Free Energy (ΔG = ΔH − TΔS)
ΔH, kJ/mol
T, K
ΔS, J/(mol·K)
ΔG
-114.9kJ/mol
More about: Gibbs Free Energy (ΔG = ΔH − TΔS)
What it calculates
The “Gibbs Free Energy (ΔG = ΔH − TΔS)” calculator computes ΔG in kJ/mol from 3 parameters: δh, kj/mol, t, k, δs, j/(mol·k).
A standard physics formula used in educational and engineering tasks.
Example calculation
With parameters ΔH, kJ/mol = -100, T, K = 298, ΔS, J/(mol·K) = 50 the result is -114.9 kJ/mol.
How to use
- Enter δh, kj/mol, t, k and δs, j/(mol·k) — each field above is adjustable with a slider.
- ΔG (kJ/mol) is calculated automatically as you type.
- Check the worked example below to see the formula applied to real numbers.
- Copy the result or bookmark this calculator.
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FAQ
How is Gibbs Free Energy (ΔG = ΔH − TΔS) calculated?
The Gibbs Free Energy (ΔG = ΔH − TΔS) calculator computes ΔG (in kJ/mol) from δh, kj/mol, t, k, δs, j/(mol·k). Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Gibbs Free Energy (ΔG = ΔH − TΔS) calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.
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