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Understanding Electrochemical Thermodynamics through Entropy Analysis
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Abstract
This discovery-based activity involves entropy analysis of galvanic cells. The intent of the activity is for students to discover the fundamentals of electrochemical cells through a combination of entropy analysis, exploration, and guided discovery. The student is guided into discovering (i) two fundamental quantities that determine the theoretical electrical potential of any galvanic cell, 
and n, and (ii) the numerical value for the Faraday constant. Then the student makes predictions and tests them experimentally.
Keywords (Audience):
High School / Introductory ChemistryKeywords (Domain):
Laboratory InstructionKeywords (Feature):
Secondary School ChemistryKeywords (Pedagogy):
Hands-On Learning / ManipulativesKeywords (Subject):
ElectrochemistryCiting Articles
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This article has been cited by 4 ACS Journal articles (4 most recent appear below).
Understanding Chemical Equilibrium Using Entropy Analysis: The Relationship Between ΔStot(syso) and the Equilibrium Constant
Thomas H. BindelJournal of Chemical Education2010 87 (7), 694-699Understanding Chemical Equilibrium Using Entropy Analysis: The Relationship Between ΔStot(syso) and the Equilibrium Constant
Thomas H. BindelJournal of Chemical Education2010 87 (7), 694-699Entropy analyses as a function of the extent of reaction are presented for a number of physicochemical processes, including vaporization of a liquid, dimerization of nitrogen dioxide, and the autoionization of water. Graphs of the total entropy change ...
Teaching Entropy Analysis in the First-Year High School Course and Beyond
Thomas H. BindelJournal of Chemical Education2004 81 (11), 1585Teaching Entropy Analysis in the First-Year High School Course and Beyond
Thomas H. BindelJournal of Chemical Education2004 81 (11), 1585A 16-day teaching unit is presented that develops chemical thermodynamics at the introductory high school level and beyond from exclusively an entropy viewpoint referred to as entropy analysis. Many concepts are presented, such as: entropy, spontaneity, ...
Chlor–Alkali Industry: A Laboratory Scale Approach
C. M. Sánchez-Sánchez , E. Expósito , A. Frías-Ferrer , J. González-García , V. Montiel and A. AldazJournal of Chemical Education2004 81 (5), 698Chlor–Alkali Industry: A Laboratory Scale Approach
C. M. Sánchez-Sánchez , E. Expósito , A. Frías-Ferrer , J. González-García , V. Montiel and A. AldazJournal of Chemical Education2004 81 (5), 698An experiment is described that approximates the industrial chlor–alkali process using a membrane cell. The experiments allows students to assimilate the basic theoretical concepts of applied electrochemistry (charge and mass balances, charge and mass ...
Entropy Is Simple, Qualitatively
Frank L. LambertJournal of Chemical Education2002 79 (10), 1241Entropy Is Simple, Qualitatively
Frank L. LambertJournal of Chemical Education2002 79 (10), 1241Qualitatively, entropy is simple. What it is, why it is useful in understanding the behavior of macro systems or of molecular systems is easy to state: Entropy increase from a macro viewpoint is a measure of the dispersal of energy from localized to ...
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- Received: August 03, 2009
ACS
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