Give the Applications of electrochemical series.

1.	Give the Applications of electrochemical series.
Answer» (i) To compare the relative oxidizing and reducing powers- A chemical species with higher value of E° will be stronger oxidizing agent and a chemical species with more – ve E° will be stronger reducing agent. (ii) To compare the relative activities of metals- A metal with more –ve E° value will be more reactive (iii) To calculate the E°cell of given cell- E⁰_cell = E°_cathode - E°_anodeor E°_cell = E°_RHS - E°_LHS N.B. - E° for SHE is taken 0 (Zero) (iv) To predict whether a metal will displace hydrogen from its compound or not- All the chemical species which have –ve E° value will displace hydrogen from its compounds. M → Mn⁺ + ne^- (electron lost is gained by H⁺ ion to undergo reduction and H₂ is formed) Usefulness of Nernst equation to calculate E_cell at different conc. And temp. Definition of strong electrolyte, weak electrolyte, limiting molar conductivity.

Answer»

(i) To compare the relative oxidizing and reducing powers- A chemical species with higher value of E° will be stronger oxidizing agent and a chemical species with more – ve E° will be stronger reducing agent.

(ii) To compare the relative activities of metals- A metal with more –ve E° value will be more reactive

(iii) To calculate the E°cell of given cell-

E⁰_cell = E°_cathode - E°_anodeor E°_cell = E°_RHS - E°_LHS

N.B. - E° for SHE is taken 0 (Zero)

(iv) To predict whether a metal will displace hydrogen from its compound or not- All the chemical species which have –ve E° value will displace hydrogen from its compounds.

M → Mn⁺ + ne^- (electron lost is gained by H⁺ ion to undergo reduction and H₂ is formed)

Usefulness of Nernst equation to calculate E_cell at different conc. And temp.

Definition of strong electrolyte, weak electrolyte, limiting molar conductivity.

Give the Applications of electrochemical series.

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