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Download QR code; Print/export Download as PDF; Printable version; In other projects Wikidata item; Appearance. move to sidebar hide ... K f [2] K b [1] Water: 100.00 ...
For example, to find the K value of methane at 100 psia and 60 °F. On the left-hand vertical axis, locate and mark the point containing the pressure 100 psia. On the right-hand vertical axis, locate and mark the point containing the temperature 60°F. Connect the points with a straight line. Note where the line crosses the methane axis.
On the other hand, some constants, such as K f (the freezing point depression constant, or cryoscopic constant), depend on the identity of a substance, and so may be considered to describe the state of a system, and therefore may be considered physical properties.
The Green Book is a direct successor of the Manual of Symbols and Terminology for Physicochemical Quantities and Units, originally prepared for publication on behalf of IUPAC's Physical Chemistry Division by M. L. McGlashen in 1969. A full history of the Green Book's various editions is provided in the historical introduction to the third edition.
The K factor or characterization factor is defined from Rankine boiling temperature °R=1.8Tb[k] and relative to water density ρ at 60°F: . K(UOP) = / The K factor is a systematic way of classifying a crude oil according to its paraffinic, naphthenic, intermediate or aromatic nature. 12.5 or higher indicate a crude oil of predominantly paraffinic constituents, while 10 or lower indicate a ...
AlCl 6 K 3: potassium hexachloroaluminate: 13782-08-6 AlCl 6 Na 3: sodium hexachloroaluminate: 60172-46-5 AlCo Alumanylidynecobalt: AlF: aluminium monofluoride: 13595-82-9 AlFO: aluminium monofluoride monoxide: 13596-12-8 AlF 2: aluminium difluoride: 13569-23-8 AlF 2 O: aluminium difluoride oxide: 38344-66-0 AlF 3: aluminium trifluoride: 7784 ...
The value of K f, which depends on the nature of the solvent can be found out by the following equation: = R is the ideal gas constant. M is the molar mass of the solvent. T f is the freezing point of the pure solvent in kelvin.
In the case of nitrogen, the rotational degrees of freedom are fully active already at −173 °C (100 K, just 23 K above the boiling point). On the other hand, the vibration modes only start to become active around 350 K (77 °C) Accordingly, the molar heat capacity c P ,m is nearly constant at 29.1 J⋅K −1 ⋅mol −1 from 100 K to about ...