Driving Force Calculator

Formula

The formula to calculate the Driving Force is:

\[ V_{df} = V_{m} - V_{eq} \]

Where:

\(V_{df}\) is the driving force (mV)
\(V_{m}\) is the membrane potential (mV)
\(V_{eq}\) is the equilibrium potential (mV)

What is a Driving Force?

An electrochemical driving force refers to the difference in chemical potential or potential energy between two phases of an electrochemical reaction. The greater the difference in concentration between two ions, the more potential energy is stored, and the higher the electrochemical driving force (EDF).

Example Calculation

Let's assume the following values:

Membrane Potential (Vm) = -70 mV
Equilibrium Potential (Veq) = -90 mV

Using the formula:

\[ V_{df} = -70 - (-90) = -70 + 90 = 20 \text{ mV} \]

The Driving Force (Vdf) is 20 mV.