what is an electrochemical series? how does it help in calculating the e.m.f of a standard cell?
Answers
it is a series which shows the standard electrode potential of the elements by referring hydrogen as having zero potential.
by looking and searching the standard electrode potential of respective element.we can solve the nersnt eq.
Answer:
it is define as the arrangement of elements in order to increasing reduction potential values is called electrochemical series some time it is called Activated series.
In order to measure the electrode potential of any electrode, connected with the SHE.than emf is noted
Explanation:
in order to measure the electrode potential of an electrode . it is connected with standard hydrogen electrode then EMF is noted. this gives electrode potential of the given electrode as the electrode potential of standard hydrogen electrode is zero this electrode potential can either be positive or negative the electrode potential of an electrode is given or negative sign of oxidation takes place at this electrode when connected to hydrogen electrode the standard electrode potential of an electrode is given a positive sign if reduction takes place at this electrode when connected with standard hydrogen electrode to form the cell this standard electrode potential of various electrode are given in the decreasing order of their reducing strength in series cord electromotive force series or electrochemical series.