Thermal Conductivity of Gas
Definition
Thermal Conductivity of Gas is a value that shows the extent of heat flow through a matter. In other words, it is expressed in the ratio of the calorie that flows vertically in a unit time passing through a unit area on the isothermal surface inside of a pure substance to the temperature-gradient in the same direction. When there is 1K temperature difference between both sides of 1m-thick plate, it is the calorie value in Joule, that flows through the 1 square meter side area of the plate for 1 second.
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Estimation Method
MolInstincts
Property values are estimated by the combination of fundamental thermodynamic theories, modern modeling approaches, e.g., SVRC (Scaled Variable Reduced Coordinates), QSPR (quantitative structure-property relationships) methods, and ANN (Artificial Neural Network) with over fitting prevention algorithm, utilizing the quantum chemical calculations results and molecular descriptors. The estimated value is finally determined after manual inspection.
Misic-Thodos
Forecasting the property value using other property values and formulas. (J. Chem. Eng. Data., 8: 540 , 1963)
Modified Eucken
Forecasting the property value using other property values and formulas. (Properties of Gases and Liquids, 5th Ed., New York, McGraw Hill, 2000, p10.3)
※ The values by the previously known Prediction methods are obtained by using constant property values forecasted from MolInstincts as calculation factors.
Examples for each Comment
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Accuracy Level 5
