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Peer reviewed
Cohen, Richard W.; Whitmer, John C. – Journal of Chemical Education, 1981
Describes how Gibbs valley graphs can clarify the relation between the Gibbs function and chemical equilibrium. Gives examples from gas phase equilibria. (CS)
Descriptors: Chemical Equilibrium, Chemical Reactions, Chemistry, College Science
Peer reviewed
Mickey, Charles D., Ed. – Journal of Chemical Education, 1981
Discusses the concept of equilibrium in chemical systems, particularly in relation to predicting the position of equilibrium, predicting spontaneity of a reaction, quantitative applications of the equilibrium constant, heterogeneous equilibrium, determination of the solubility product constant, common-ion effect, and dissolution of precipitates.…
Descriptors: Chemical Equilibrium, Chemistry, College Science, Higher Education
Peer reviewed
MacDonald, J. J. – Journal of Chemical Education, 1990
Suggestions for the use of two different conventions in difference and rate terms in thermodynamics are made. It is shown how this approach lends itself to an accurate and concise discussion of function changes for a chemical reaction. (CW)
Descriptors: Chemical Analysis, Chemical Equilibrium, Chemical Reactions, Chemistry
Peer reviewed
Campbell, Mark L.; Waite, Boyd A. – Journal of Chemical Education, 1990
Provided is a rebuttal to an argument concerning the use of Ka values for water and the hydronium ion. The derivation of new values as a result of the treatment of the water as the solvent and using a Raoult's Law standard state is discussed. (CW)
Descriptors: Acids, Chemical Analysis, Chemical Equilibrium, Chemical Reactions
Peer reviewed
Birss, Viola I.; Truax, D. Rodney – Journal of Chemical Education, 1990
An approach which may be useful for teaching electrochemistry in freshman college chemistry courses is presented. Discussed are the potential problems with teaching this subject and solutions provided by this approach. (CW)
Descriptors: Chemical Equilibrium, Chemical Reactions, Chemistry, College Freshmen
Peer reviewed
Vella, Alfred J. – Journal of Chemical Education, 1990
This paper suggests a nontraditional pedagogic approach to the subject of redox reactions and electrode potentials suitable for freshman chemistry. Presented is a method for the representation of galvanic cells without the introduction of the symbology and notation of conventional cell diagrams. (CW)
Descriptors: Chemical Equilibrium, Chemical Reactions, Chemistry, College Freshmen
Peer reviewed
Smith, Derek W. – Journal of Chemical Education, 1990
Presented is a modification of Bratsch's prescription so that difficult problems are obviated while simple, familiar Pauling electronegativities are retained. Discussed are the equilibration of electronegativity in molecules, group electronegativities, coordination compounds and molecules with dative bonds, ions, and correlation with core…
Descriptors: Atomic Structure, Chemical Bonding, Chemical Equilibrium, Chemical Reactions
Peer reviewed
Estevez, Gentil A.; And Others – Journal of Chemical Education, 1989
Proposed is a flow-chart and related formulas to obtain expressions for the derivatives of the old thermodynamic function in terms of new variables, the new function and its derivatives, and derivatives of the old function, involving only measurable quantities. (CW)
Descriptors: Calculus, Chemical Equilibrium, Chemistry, College Science
Peer reviewed
Cullen, John F., Jr. – Journal of Chemical Education, 1989
Presented is a computer simulation called "The Great Chemical Bead Game" which can be used to teach the concepts of equilibrium and kinetics to introductory chemistry students more clearly than through an experiment. Discussed are the rules of the game, the application of rate laws and graphical analysis. (CW)
Descriptors: Chemical Equilibrium, Chemical Reactions, Chemistry, College Science