class 12 chemistry unit 3 electrochemistry

As mentioned earlier (Class XI, Unit 8) a galvanic cell is an electrochemical cell that converts the chemical energy of a spontaneous redox reaction into electrical  

Standard electrode potential The potential difference developed between metal electrode and solution of ions of unit molarity (1M) at 1 atm pressure and 25°C ( 

3 Ecell = Eө cell - 2 303RT [Anode ion] log nF [Cathode ion] 4 Eө cell = c 0 059 logK 12 κ Λ m x1000 = C Remember: Unit of Λm in above formula is Scm2mol-1 13 α c m 0 m ∧ = ∧ 14 2 a cα K = 1-α XII Chemistry CHAPTER 3 - 

3 TYPES Electrochemical Cells are of two types: 3 1 Galvanic Cells 12 SPONTANEITY OF A REACTION ∆G = – nFE CELL For a spontaneous cell reaction ΔG should be negative formula unit of the electrolyte on complete dissociation

Unit Page No 1 e Solid State 7-18 2 Solutions 19-33 3 Electrochemistry 12 23 Unit IV Chemical Kinetics 10 Unit V Surface Chemistry 08 Unit VI

www mywayteaching com Class XII Chapter 3 – Electrochemistry Chemistry unit volume of solution kept between two platinum electrodes with the unit area 

Unit 3: Chemistry in Society Electrochemistry N5 Chemistry: Unit 3 Topic 2 12 state that the reactions in electrochemical cells are examples of redox following demonstration in the class shows that lead-acid batteries can store charge

Class 12 Chemistry Electrochemistry In Text Questions Solution Ncert Solutions For Class 12 Chemistry, UNIT 3 ELECTROCHEMISTRY, Exercise Question