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Andy Zhu Bryan Law Jason Ding Liam Jordan

Andy Zhu Bryan Law Jason Ding Liam Jordan. G4. Research Question & Hypothesis. How does the temperature of anode and cathode solutions ZnNO 3 and CuNO 3 affect the voltage in a voltaic cell ? Hypothesis: Increased temperature would lead to an increased amount of voltage. Introduction.

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Andy Zhu Bryan Law Jason Ding Liam Jordan

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  1. Andy Zhu Bryan Law Jason Ding Liam Jordan G4

  2. Research Question & Hypothesis • How does the temperature of anode and cathode solutions ZnNO3 and CuNO3 affect the voltage in a voltaic cell? Hypothesis: Increased temperature would lead to an increased amount of voltage

  3. Introduction • Zn(s) Zn2+(aq) + 2e- (.76V) [oxidation] • Cu2+(aq) + 2e-  Cu(s) (.34V) [reduction] Zn(s) + Cu2+(aq)  Zn2+(aq) + Cu(s) (1.1V)

  4. Variables

  5. Data and Analysis Change in Temperature of .5MZnNO3 and.5MCuNO3 vs. Voltage Output

  6. Conclusion • In the end our hypothesis was supported by the data we received. • An increase in temperature resulted in higher voltage. • Errors/Improvements • Nature of correlation inconclusive

  7. References • "History Of Battery." - Interesting & Amazing Information On Origin & Background Of Battery. Web. 30 May 2012. <http://lifestyle.iloveindia.com/lounge/history-of-battery-7600.html>. • "Electrochemical Cells." Electrochemical Cells. Web. 30 May 2012. <http://hyperphysics.phy-astr.gsu.edu/hbase/chemical/electrochem.html>. • "DoITPoMS." - TLP Library The Nernst Equation and Pourbaix Diagrams. Web. 30 May 2012. <http://www.doitpoms.ac.uk/tlplib/pourbaix/nernst.php>. • "Galvanic Cells." Http://chemed.chem.wisc.edu/. Student Resources for General Chemistry. Web. 31 May 2012. <http://chemed.chem.wisc.edu/chempaths/GenChem-Textbook/Galvanic-Cells-699.html>. • "Galvanic Cell." Galvanic Cell. Web. 30 May 2012. <http://web.fccj.org/~ethall/2046/ch18/galvanic.htm>.

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