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Heat capacity changes and partial molal heat capacities of some di- and tripeptides in water

✍ Scribed by K. P. Prasad; J. C. Ahluwalia

Publisher
Wiley (John Wiley & Sons)
Year
1980
Tongue
English
Weight
466 KB
Volume
19
Category
Article
ISSN
0006-3525

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✦ Synopsis

Abstract

Integral enthalpies of solution of several dipeptides and tripeptides in water at low concentrations have been determined at 25 and 35Β°C. These data have been used to derive the changes in heat capacity on dissolution at infinite dilution Ξ”__C__ at 30Β°C. Limiting partial molal heat capacities Ξ”__C__ have been determined by combining Ξ”__C__ with C~__p__2~ (heat capacity of pure solid peptides). Using the data on ω‐amino acids and these peptides, the partial molal heat capacity of a peptide group ο£ΏCONHο£Ώ was semiquantitatively estimated.

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