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Prediction of Heat Capacities of Pure Organic Compounds at Some Range of Reduced Temperatures

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13440%2F04%3A00004220" target="_blank" >RIV/44555601:13440/04:00004220 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Prediction of Heat Capacities of Pure Organic Compounds at Some Range of Reduced Temperatures

  • Original language description

    Group contribution method1 was developed for estimation of heat capacity of pure organic liquids at 298.15 K and at several reduced temperatures from 0.2 to 0.6. This approach performing the estimation at three levels. The first level uses simple group contributions that enable a description of a wide variety of organic compounds. The second and third levels involve the bigger and more complex groups that permit a better description of polyfunctional compounds, differentiation between isomers and also the capturing of the proximity effect. Large databases of critically evaluated data2,3 were used to develop group contributions at temperatures mentioned above. All compounds had to be described by so called "SMILES format"4,5 before application of the method. SMILES - Simplified Molecular Input Line Entry System is widely used throughout the Daylight Toolkit. SMILES is a line notation (a typographical method using printable characters) for entering and representing molecules. There are f

  • Czech name

    Odhad tepelných kapacit čistých organických látek v rozsahu redukovaných teplot

  • Czech description

    K odhadu tepelných kapacit čistých organických kapalin při teplotě 298,15 K a při několika hodnotách redukované teploty v rozsahu 0,2 až 0,6 byla vyvinuta nová příspěvková metoda. Tento proces odhaduje tepelnou kapacitu ve třech úrovních. Pro výpočet parametrů byly vytvořeny velké databáze vstupních, kriticky zhodnocených experimentálních údajů. Průměrné relativní chyby odhadu byly následující: § tepelná kapacita při teplotě 298,15 K: 1,7 % (pro 678 látek) § tepelná kapacita při teplotách Tr = 0,4, 0,5,0,6: 2 % (pro 320, 450, 300 látek, resp.).

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    CF - Physical chemistry and theoretical chemistry

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2004

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Chemické listy

  • ISSN

    0009-2770

  • e-ISSN

  • Volume of the periodical

    98

  • Issue of the periodical within the volume

    8

  • Country of publishing house

    CZ - CZECH REPUBLIC

  • Number of pages

    1

  • Pages from-to

  • UT code for WoS article

  • EID of the result in the Scopus database