General Chemsitry
Terms
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- Galvanic (voltaic) cell
- device that uses spontaneous redox reactions to generate electric current
- Anode
- hlaf cell that gets oxidized
- Caathode
- Half cell that gets reduced
- G for redox reaction
-
-nFE
n- # e-ns transfered - Reaction is spontaneous if cell voltage is
- positive
- Reaction is non spontatneous if cell voltage is
- negative
- Good reducing agent has..
- more negative reduction potential
- Good oxidizing agent
- more positive reduction potential
- Electrolytic cell
- uses external voltage source (battery) to drive non spontaneous rxn
- Anode and cathode sign in galvanic cell
- Anode is negative, cathode is positive
- Anode and cathode sigh in electrolytic cell
- Anode is positive, cathode is negative
- faradays law of electrolysis
- Amount of chemical change is proportional to the amount of electricity that flows through the cell
- Concentration cell
- galvanic cell that has identical electrodes but different ion concentrations