Question

What is the difference between Electrochemical Series and Galvanic Series?

Answer 1

Hint: An electrochemical series, also known as an activity series, is a list that describes the order in which elements are arranged in order of increasing electrode potential values. The series was created by comparing the potential of different electrodes to that of a conventional hydrogen electrode (SHE). The nobility of metals and semimetals is determined by the galvanic series. Galvanic occurs when two metals are submerged in an electrolyte while also being electrically linked by an external conductor.

Complete step-by-step solution:

	Electrochemical Series	Galvanic Series
Definition	Electrochemical series is a list of chemical elements which shows their order of standard electrode potentials.	The galvanic series is a classification of metals and semimetals based on their nobility.
Principle	Based on the standard electrode potential relative to the standard hydrogen electrode potential.	Based on the galvanic corrosion of metal and alloys.
Measurement	Series is produced by measuring the electrode potential by immersing the metal in electrolyte as the cathode and measuring the electrode potential.	Series is produced by measuring the galvanic corrosion; by immersing two metals in an electrolyte as electrodes and connecting them to an external current to observe which metal shows galvanic corrosion.
Position of a metal in the series	Fixed	Can vary depending on the environment.
Alloys	Not included.	Included.
Listed materials	Metals and nonmetals	Metals, semi-metals and alloys
Prediction	Predicts the relative displacement tendencies.	Predicts the relative corrosion tendencies.
Nature	Quantitative	Qualitative.
Organisms	For theoretical applications.	For practical applications.

 Note:
Galvanic series and electrochemical series differ in that galvanic series depicts the order of nobility of metals and semimetals, whereas electrochemical series depicts the order of standard electrode potentials of chemical elements. Galvanic series derived from galvanic corrosion of metals and alloys, whereas electrochemical series derived from the standard electrode potential relative to the standard hydrogen electrode potential.