The Residual Entropy of the Equimolal KCl-KBr Solid Solution in Relation to Wasast Jerna's Theory of Alkali Halide Solid Solutions

Using the DELTA C/sub p/'s for the temperature range 12 to 300 deg K, the residual entropy was computed to be 1.39 plus or minus 0.04 eu or 1.37 plus or minus 0.04 eu. The values, which are very close to the entropy of random mixing, strongly suggest that there is a negligible amount of local o...

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Veröffentlicht in:	Journal of physical chemistry (1952) 1961-08, Vol.65 (8)
Hauptverfasser:	Milnes, M. V., Wallace, W. E.
Format:	Artikel
Sprache:	eng
Schlagworte:	ALKALI METALS ANIONS CHEMISTRY ENTROPY HALIDES LATTICES MIXING POTASSIUM BROMIDES POTASSIUM CHLORIDES SALTS SOLIDS SOLUTIONS TEMPERATURE
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container_issue	8
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container_title	Journal of physical chemistry (1952)
container_volume	65
creator	Milnes, M. V. Wallace, W. E.
description	Using the DELTA C/sub p/'s for the temperature range 12 to 300 deg K, the residual entropy was computed to be 1.39 plus or minus 0.04 eu or 1.37 plus or minus 0.04 eu. The values, which are very close to the entropy of random mixing, strongly suggest that there is a negligible amount of local order in the anion sublattice. The results are at variance with Wasastjerna's theory which predicts a residual entropy of 1.29 plus or minus 0.01 eu and an appreciable degree of order. The results show that when KCl/sub 0.5/Br/sub 0.5/ is formed from the component salts, there is an increase in vibrational entropy of 0.11 eu. (P.C.H.)
doi_str_mv	10.1021/j100826a511
format	Article
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E.</creator><creatorcontrib>Milnes, M. V. ; Wallace, W. E. ; Univ. of Pittsburgh</creatorcontrib><description>Using the DELTA C/sub p/'s for the temperature range 12 to 300 deg K, the residual entropy was computed to be 1.39 plus or minus 0.04 eu or 1.37 plus or minus 0.04 eu. The values, which are very close to the entropy of random mixing, strongly suggest that there is a negligible amount of local order in the anion sublattice. The results are at variance with Wasastjerna's theory which predicts a residual entropy of 1.29 plus or minus 0.01 eu and an appreciable degree of order. The results show that when KCl/sub 0.5/Br/sub 0.5/ is formed from the component salts, there is an increase in vibrational entropy of 0.11 eu. 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E.</creatorcontrib><creatorcontrib>Univ. of Pittsburgh</creatorcontrib><title>The Residual Entropy of the Equimolal KCl-KBr Solid Solution in Relation to Wasast Jerna's Theory of Alkali Halide Solid Solutions</title><title>Journal of physical chemistry (1952)</title><description>Using the DELTA C/sub p/'s for the temperature range 12 to 300 deg K, the residual entropy was computed to be 1.39 plus or minus 0.04 eu or 1.37 plus or minus 0.04 eu. The values, which are very close to the entropy of random mixing, strongly suggest that there is a negligible amount of local order in the anion sublattice. The results are at variance with Wasastjerna's theory which predicts a residual entropy of 1.29 plus or minus 0.01 eu and an appreciable degree of order. The results show that when KCl/sub 0.5/Br/sub 0.5/ is formed from the component salts, there is an increase in vibrational entropy of 0.11 eu. (P.C.H.)</description><subject>ALKALI METALS</subject><subject>ANIONS</subject><subject>CHEMISTRY</subject><subject>ENTROPY</subject><subject>HALIDES</subject><subject>LATTICES</subject><subject>MIXING</subject><subject>POTASSIUM BROMIDES</subject><subject>POTASSIUM CHLORIDES</subject><subject>SALTS</subject><subject>SOLIDS</subject><subject>SOLUTIONS</subject><subject>TEMPERATURE</subject><issn>0022-3654</issn><issn>1541-5740</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1961</creationdate><recordtype>article</recordtype><recordid>eNqNjD1PAzEMhiMEUo-PqX_AYmG6YudypR2hOlS1G1RirKK7VE0JMZxzAyu_nFAxMbE8tt7XfpQaE04INd0eCHGmp7YmOlEF1YbK-s7gqSoQtS6raW1G6lzkgIhUVVSor83ewZMT3w02QBNTz--fwDtIOW8-Bv_GIRfrRSjXDz08c_DdD4fkOYKP-TfY454YXqxYSbByfbQ3AlnN_VF2H15t8LDM6NwfiVyqs50N4q5-54W6fmw2i2XJkvxWWp9cu285RtemrZkZPad59a-jb8IfVUM</recordid><startdate>19610801</startdate><enddate>19610801</enddate><creator>Milnes, M. V.</creator><creator>Wallace, W. E.</creator><scope>OTOTI</scope></search><sort><creationdate>19610801</creationdate><title>The Residual Entropy of the Equimolal KCl-KBr Solid Solution in Relation to Wasast Jerna's Theory of Alkali Halide Solid Solutions</title><author>Milnes, M. V. ; Wallace, W. E.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-osti_scitechconnect_48429193</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1961</creationdate><topic>ALKALI METALS</topic><topic>ANIONS</topic><topic>CHEMISTRY</topic><topic>ENTROPY</topic><topic>HALIDES</topic><topic>LATTICES</topic><topic>MIXING</topic><topic>POTASSIUM BROMIDES</topic><topic>POTASSIUM CHLORIDES</topic><topic>SALTS</topic><topic>SOLIDS</topic><topic>SOLUTIONS</topic><topic>TEMPERATURE</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Milnes, M. V.</creatorcontrib><creatorcontrib>Wallace, W. E.</creatorcontrib><creatorcontrib>Univ. of Pittsburgh</creatorcontrib><collection>OSTI.GOV</collection><jtitle>Journal of physical chemistry (1952)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Milnes, M. V.</au><au>Wallace, W. E.</au><aucorp>Univ. of Pittsburgh</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The Residual Entropy of the Equimolal KCl-KBr Solid Solution in Relation to Wasast Jerna's Theory of Alkali Halide Solid Solutions</atitle><jtitle>Journal of physical chemistry (1952)</jtitle><date>1961-08-01</date><risdate>1961</risdate><volume>65</volume><issue>8</issue><issn>0022-3654</issn><eissn>1541-5740</eissn><abstract>Using the DELTA C/sub p/'s for the temperature range 12 to 300 deg K, the residual entropy was computed to be 1.39 plus or minus 0.04 eu or 1.37 plus or minus 0.04 eu. The values, which are very close to the entropy of random mixing, strongly suggest that there is a negligible amount of local order in the anion sublattice. The results are at variance with Wasastjerna's theory which predicts a residual entropy of 1.29 plus or minus 0.01 eu and an appreciable degree of order. The results show that when KCl/sub 0.5/Br/sub 0.5/ is formed from the component salts, there is an increase in vibrational entropy of 0.11 eu. (P.C.H.)</abstract><doi>10.1021/j100826a511</doi></addata></record>
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subjects	ALKALI METALS ANIONS CHEMISTRY ENTROPY HALIDES LATTICES MIXING POTASSIUM BROMIDES POTASSIUM CHLORIDES SALTS SOLIDS SOLUTIONS TEMPERATURE
title	The Residual Entropy of the Equimolal KCl-KBr Solid Solution in Relation to Wasast Jerna's Theory of Alkali Halide Solid Solutions
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