Nernst Equation Calculator

Enter the standard potential, temperature, ion charge, and reaction quotient into the calculator to determine the reduction potential.

• Cell Potential Calculator
• Potential Difference Calculator
• Electric Potential Calculator

Nernst Equation

The following formula is used to calculate the reduction potential of a cell reaction.

E = E0 - (R*T)/(Z*f) * ln (Q)

• Where E is the reduction potential
• E0 is the standard potential
• R is the gas constant
• T is the temperature in kelvin
• z is the ion charge
• F is the Faraday constant
• Q is the reaction quotient

Nernst Equation Definition

The Nernst Equation is a mathematical expression that relates the electrical potential difference across a membrane (or a cell) to the concentration gradient of ions across that membrane. It is named after the German physicist and chemist Walther Nernst.


The Nernst Equation is important because it allows us to calculate the electrical potential difference across a membrane or cell based on the concentration gradient of ions involved in a chemical reaction. It helps in understanding and predicting the direction and magnitude of ion movement, which is crucial for various biological processes like nerve impulse transmission, muscle contraction, and the functioning of electrochemical cells.

By using this equation, scientists and researchers can determine the conditions required for ions to move across a membrane, as well as study the factors affecting these ion movements. It provides valuable insights into the electrical properties of cells and plays a significant role in fields like biochemistry, physiology, and electrochemistry.

Example

FAQ