Equilibrium constant to cell voltage
Type a value in K to get it in V instantly.
0.1775V
That's about the same as a favorable reaction. At equilibrium about 99.9% has reacted.
What it means
Which way does it go?
Values are at 25 °C. Free energy scales with temperature, so the same K means a different ΔG° in a furnace.
The math
How to convert K to V
The constant and the free energy are the same statement: ΔG° = −RT ln K, which at 25 °C is ΔG° = −5.708 × log₁₀K kJ/mol.
Example: 1,000 K = 0.177479 V.
Every unit
Your equilibrium in every unit
Tables
K to V conversion table
| K | V |
|---|---|
| 1×10⁻¹⁰ K | -0.591597 V |
| 1×10⁻⁶ K | -0.354958 V |
| 0.001 K | -0.177479 V |
| 0.1 K | -0.0591597 V |
| 1 K | 0 V |
| 10 K | 0.0591597 V |
| 1,000 K | 0.177479 V |
| 1,000,000 K | 0.354958 V |
| 1×10¹⁰ K | 0.591597 V |
| 1×10¹² K | 0.709916 V |
V to K conversion table
| V | K |
|---|---|
| -0.592 V | 9.844×10⁻¹¹ K |
| -0.355 V | 9.984×10⁻⁷ K |
| -0.177 V | 0.00101882 K |
| -0.0592 V | 0.0998433 K |
| 0 V | 1 K |
| 0.0592 V | 10.0157 K |
| 0.177 V | 981.525 K |
| 0.355 V | 1,001,630 K |
| 0.592 V | 1.016×10¹⁰ K |
| 0.71 V | 1.003×10¹² K |
Quick answers
Quick answers
- How many V is 1 K?
- 1 K is 0 V.
- How many V is 10 K?
- 10 K is 0.0591597 V.
- How many V is 1,000 K?
- 1,000 K is 0.177479 V.
The units
About these units
Equilibrium constant (K)
Products over reactants at equilibrium.
Cell voltage (V)
The voltage a one-electron redox cell with this constant would give.
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