Question

What is the free energy change for galvanic cell?

Answer 1

Galvanic Cell: A galvanic cell is an electrochemical cell that generates electrical energy by a spontaneous chemical redox reaction (an electric potential). A negative Gibbs free energy value is required for galvanic cells since it shows a spontaneous reaction.

Calculate the Change in Free Energy in Galvanic Cells:
Step 1: Read the issue and write down the specified cell potential $E^0$, and number of moles $n$.

Step 2: Using those values, solve for $∆G_{cell}^0$ using the Gibbs free energy equation.

Calculating the Free Energy Change in Galvanic Cells Equations and Definitions

$∆G_{cell}^0$=$-nF{E}^0$

This equation, $n$ represents the number of moles of electrons, $F$ represents the Faraday Constant, and $E$ represents the cell potential $\left(v\right)$