Ch1b09Lecture16

Ch1b09Lecture16 - Very brief electrochemistry, ∆ G and...

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Unformatted text preview: Very brief electrochemistry, ∆ G and equilibrium Expanded Chemistry in Context No lecture on Monday Cu 2+ (aq) + Zn → Cu(s) + Zn 2+ The salt bridge conducts ions between both chambers to maintain electrical neutrality. Note reading of voltmeter: 1.10 V Fig. ElCh.2. A laboratory version of a Daniell Cell Cu 2+ (aq) + Zn → Cu(s) + Zn 2+ The salt bridge conducts ions between both chambers to maintain electrical neutrality. Note reading of voltmeter: 1.10 V Fig. ElCh.2. A laboratory version of a Daniell Cell Electrochemical Cells, ∆ G o , and equilibrium Electrochemistry • Electrolytic cells are those in which electrical energy from an external source causes nonspontaneous chemical reactions to occur. • Voltaic cells are those in which spontaneous chemical reactions produce electricity and supply it to an external circuit. Electrodes • Electrodes are surfaces upon which oxidation and reduction half– reactions occur....
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This note was uploaded on 09/25/2010 for the course CH 104 taught by Professor Bopanna during the Fall '09 term at UMBC.

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Ch1b09Lecture16 - Very brief electrochemistry, ∆ G and...

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