ΔG from Cell Potential Calculator
🔋 Rates & Electrochemistry. Use the ΔG from cell potential formula to find δg°, electrons transferred z, cell potential e°: pick the value you want, type the others, and the answer updates as you go.
Pick the ○ next to the value you want to find, fill in the others, and it solves as you type.
What each letter means
| Quantity | Unit |
|---|---|
| ΔG° | kJ/mol |
| Electrons transferred z | no unit |
| Cell potential E° | V |
Worked example
Find the δg° when Electrons transferred z = 2, Cell potential E° = 1.1 V.
Using Δ G° = -zFE°: ΔG° = -212.27 kJ/mol.
Frequently asked questions
What is the formula for ΔG from cell potential?
Δ G° = -zFE°.
What do the letters stand for, and what units are used?
ΔG° in kJ/mol, Electrons transferred z, Cell potential E° in V.
How do you calculate δg°?
Put the values into Δ G° = -zFE°. For example, with Electrons transferred z = 2, Cell potential E° = 1.1 V, δg° = -212.27 kJ/mol.
Can I solve for a different value?
Yes. In the calculator above, pick the circle next to any value (δg°, electrons transferred z, cell potential e°) and fill in the others: it rearranges the formula for you.
