电化学（天津大学） Ch_2_Fundamental_relationships_May_2010_Rev.pdf

CHAPTER 2: FUNDAMENTAL RELATIONSHIPS 1. Physical units 2. Faraday’s law 3. Efficiencies 4. Ionic and electronic conduction 5. Ionic conductance, mobility, Kohlrausch’s laws 6. Grotthuss transport 7. Strong weak electrolytes (Arrhenius Ostwald laws) 8. Some additional fundamentals: Field, Potential, Electrical force, Poisson’s Laplace’s equations 9. Movement of an ion in an electrical field 10. Walden’s Laws 11. Debye-Huckel-Onsager theory for strong electrolytes 12. Non-aqueous electrolytes. 13. Molten salts 14. Heterogeneous media: Maxwell’s and Bruggemann’s models. Emulsions, gas evolving electrodes. 15. Conductivity measurements 2-1 CHAPTER 2: FUNDAMENTAL RELATIONSHIPS Review of Physical Quantities MECHANICAL 2 Force: f = m x a f = [Dyne or Nt] m = [gr or Kg] a= [acceleration, cm/s or 2 m/s ] Work (or energy): W = F x S W = [erg; Joule; Watt s; KWH; Cal; BTU] W J  Power: P  Watt; KW; HP 746 W = 1 HP t s  ELECTRICAL Charge: q [cb] 5 F [1 Faraday = 96,480 cb = 10 cb] Current: q Cb   I Amp    t s   Current densitya I  A  mA   A   A  i 2 or 2 or 2 or  2 ; ASF     