Redox reactions

Question 1

What does MPBOA stand for

Answer 1

more positive, better oxidising agent

Question 2

Redox reactions witha delta E^0 value of > 0 means

Answer 2

it occurs spontaneously (battery discharging)

Question 3

What does application of voltage to a redox reaction do

Answer 3

forces its reversal - battery charging

Question 4

Redox reaction - delta G equation

Answer 4

ΔG0 = - z.F.ΔE0

z = number of electrons, F = Faraday constant = NA.e = 96 485.309 C/mol

Question 5

Measuring potentials - Nernst equation

Answer 5

E = E^0 - (RT/nF)In(aH2/a2H+)

Question 6

What is the 1st kind of electrode

Answer 6

electrode of same metal as ions in solution

Question 7

What is the 2nd kind of electrode

Answer 7

Pt wire in inner tube in contact with paste. Has a porous ceramic junction. Hole for filling with a solution and a hole so the paste can have contact with the solution

Question 8

What is a redox electrode

Answer 8

inert metal wire (Pt, Au, Ir) in contact with solution containing redox pair