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Standard free energy of formation of iron iodideAn experiment is reported where silver iodide is used to determine the standard free energy of formation of iron iodide. By using silver iodide as a solid electrolyte, a galvanic cell, Ag/AgI/Fe-FeI2, is formulated. The standard free energy of formation of AgI is known, and hence it is possible to estimate the standard free energy of formation of FeI2 by measuring the open-circuit emf of the above cell as a function of temperature. The free standard energy of formation of FeI2 determined by this method is -38784 + 24.165T cal/mol. It is estimated that the maximum error associated with this method is plus or minus 2500 cal/mol.
Document ID
19830047081
Document Type
Reprint (Version printed in journal)
Authors
Khandkar, A. (Arizona State Univ. Tempe, AZ, United States)
Tare, V. B. (Arizona State Univ. Tempe, AZ, United States)
Wagner, J. B., Jr. (Arizona State University Tempe, AZ, United States)
Date Acquired
August 11, 2013
Publication Date
April 1, 1983
Publication Information
Publication: Electrochemical Society
Subject Category
INORGANIC AND PHYSICAL CHEMISTRY
Funding Number(s)
CONTRACT_GRANT: NAS8-32937
Distribution Limits
Public
Copyright
Other