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Beyond the thermal set point: Significance of the compensatory temperatures of water vapor condensation in biological interactions
Author(s) -
Chun Paul W.
Publication year - 2012
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.24218
Subject(s) - condensation , set point , thermal , water vapor , set (abstract data type) , chemistry , point (geometry) , thermodynamics , physics , mathematics , geometry , computer science , organic chemistry , control engineering , engineering , programming language
This communication reports for the first time a link that has gone unrecognized between the compensatory temperatures of water vapor condensation and the thermal set point in interacting biological systems, where the bound unavailable energy T Δ S ° = 0, that is Δ H °( T S )(−) and Δ G °( T S )(−) min intersect. In addition to determining the unique thermal set point for water vapor, which falls at 260 K, our results indicate that in any biological interaction, the thermal set point must fall between the limits defined by the compensatory temperatures of water vapor, that is between 30 and 380 K, where Δ H °( T h )(+) ≅ T Δ S °( T h )(+) at ( T h ) and Δ H °( T m )(−) ≅ T Δ S °( T m )(−) at ( T m ) or ( T cond ). Only between these limits, where Δ G °( T ) = 0, is the net chemical driving force favorable for biological interaction to occur. © 2012 Wiley Periodicals, Inc.