Question

What is the unit of ion activity for electrochemistry ?

Answer 1

The unit of ion activity for electrochemistry is the mole per liter (mol/L), which is denoted by the symbol "M". The ion activity is a measure of the effective concentration of ions in solution, which takes into account the interactions between the ions and the solvent molecules. In electrochemistry, ion activity is used in the calculation of electrochemical potential, which is related to the free energy change of a chemical reaction. The ion activity is an important parameter in electrochemical calculations, and it is typically expressed as a dimensionless quantity known as the activity coefficient, which is a measure of the deviation of the ion activity from its ideal value.

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Answer 2

The unit of ion activity for electrochemistry is the activity coefficient, which is often denoted by the symbol γ. It is a dimensionless quantity that represents the deviation of the behavior of an ion from that of an ideal solution. The activity coefficient is used to calculate the activity of an ion in a solution, which is a measure of its effective concentration and is denoted by the symbol a. The unit of ion activity is therefore dimensionless.