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Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Standard_state> ?p ?o }

• Standard_state abstract "In chemistry, the standard state of a material (pure substance, mixture or solution) is a reference point used to calculate its properties under different conditions. In principle, the choice of standard state is arbitrary, although the International Union of Pure and Applied Chemistry (IUPAC) recommends a conventional set of standard states for general use. IUPAC recommends using a standard pressure po = 105 Pa. Strictly speaking, temperature is not part of the definition of a standard state. For example, as discussed below, the standard state of a gas is conventionally chosen to be unit pressure (usually in bar) ideal gas, regardless of the temperature. However, most tables of thermodynamic quantities are compiled at specific temperatures, most commonly 298.15 K (25.00 °C; 77.00 °F) or, somewhat less commonly, 273.15 K (0.00 °C; 32.00 °F).The standard state should not be confused with standard temperature and pressure (STP) for gases, nor with the standard solutions used in analytical chemistry.At the time of development in the nineteenth century, the superscript plimsoll symbol was adopted to indicate the non-zero nature of the standard state. IUPAC recommends in the 3rd edition of Quantities, Units and Symbols in Physical Chemistry a symbol which seems to be a degree sign (°) as a substitute for the plimsoll mark. In the very same publication the plimsoll mark appears to be constructed by combining a horizontal stroke with a degree sign. A range of similar symbols are used in the literature: a stroked lowercase letter O (o), a superscript zero (0) or a circle with a horizontal bar either where the bar extends the boundaries of the circle (U+29B5 ⦵ CIRCLE WITH HORIZONTAL BAR) or is enclosed by the circle, dividing the circle in half (U+2296 ⊖ CIRCLED MINUS). When compared to the plimsoll symbol used on vessels, the horizontal bar should however extend the boundaries of the circle.For a given material or substance, the standard state is the reference state for the material's thermodynamic state properties such as enthalpy, entropy, Gibbs free energy, and for many other material standards. The standard enthalpy change of formation for an element in its standard state is zero, and this convention allows a wide range of other thermodynamic quantities to be calculated and tabulated. The standard state of a substance does not have to exist in nature: for example, it is possible to calculate values for steam at 298.15 K and 105 Pa, although steam does not exist (as a gas) under these conditions. The advantage of this practice is that tables of thermodynamic properties prepared in this way are self-consistent.".
• Standard_state wikiPageExternalLink 6879.pdf.
• Standard_state wikiPageExternalLink 5406x1239.pdf.
• Standard_state wikiPageID "240224".
• Standard_state wikiPageLength "7999".
• Standard_state wikiPageOutDegree "30".
• Standard_state wikiPageRevisionID "646767744".
• Standard_state wikiPageWikiLink Allotropy.
• Standard_state wikiPageWikiLink Analytical_chemistry.
• Standard_state wikiPageWikiLink Category:Thermodynamics.
• Standard_state wikiPageWikiLink Chemical_substance.
• Standard_state wikiPageWikiLink Chemistry.
• Standard_state wikiPageWikiLink Enthalpy.
• Standard_state wikiPageWikiLink Entropy.
• Standard_state wikiPageWikiLink Gibbs_free_energy.
• Standard_state wikiPageWikiLink Graphite.
• Standard_state wikiPageWikiLink Ideal_gas.
• Standard_state wikiPageWikiLink Ideal_gas_law.
• Standard_state wikiPageWikiLink International_Union_of_Pure_and_Applied_Chemistry.
• Standard_state wikiPageWikiLink Journal_of_Biological_Chemistry.
• Standard_state wikiPageWikiLink Metastability.
• Standard_state wikiPageWikiLink Molality.
• Standard_state wikiPageWikiLink Molar_concentration.
• Standard_state wikiPageWikiLink Pascal_(unit).
• Standard_state wikiPageWikiLink Phosphorus.
• Standard_state wikiPageWikiLink Pure_and_Applied_Chemistry.
• Standard_state wikiPageWikiLink Solution.
• Standard_state wikiPageWikiLink Standard_conditions_for_temperature_and_pressure.
• Standard_state wikiPageWikiLink Standard_enthalpy_of_formation.
• Standard_state wikiPageWikiLink Standard_solution.
• Standard_state wikiPageWikiLink Steam.
• Standard_state wikiPageWikiLink Tin.
• Standard_state wikiPageWikiLink Waterline.
• Standard_state wikiPageWikiLinkText "Standard state".
• Standard_state wikiPageWikiLinkText "air standard".
• Standard_state wikiPageWikiLinkText "plimsoll".
• Standard_state wikiPageWikiLinkText "reference state".
• Standard_state wikiPageWikiLinkText "standard conditions".
• Standard_state wikiPageWikiLinkText "standard pressure".
• Standard_state wikiPageWikiLinkText "standard state (at 25 °C, 100 kPa)".
• Standard_state wikiPageWikiLinkText "standard state (at 25 °C, 100 kPa)".
• Standard_state wikiPageWikiLinkText "standard state (at 25°C, 100 kPa)".
• Standard_state wikiPageWikiLinkText "standard state".
• Standard_state wikiPageWikiLinkText "standard".
• Standard_state wikiPageUsesTemplate Template:Cite_journal.
• Standard_state wikiPageUsesTemplate Template:Convert.
• Standard_state wikiPageUsesTemplate Template:Unichar.
• Standard_state subject Category:Thermodynamics.
• Standard_state hypernym Point.
• Standard_state type Place.
• Standard_state type Concept.
• Standard_state type Page.
• Standard_state type Physic.
• Standard_state type Thermodynamic.
• Standard_state comment "In chemistry, the standard state of a material (pure substance, mixture or solution) is a reference point used to calculate its properties under different conditions. In principle, the choice of standard state is arbitrary, although the International Union of Pure and Applied Chemistry (IUPAC) recommends a conventional set of standard states for general use. IUPAC recommends using a standard pressure po = 105 Pa. Strictly speaking, temperature is not part of the definition of a standard state.".
• Standard_state label "Standard state".
• Standard_state sameAs Q4283776.
• Standard_state sameAs Стандартно_състояние.
• Standard_state sameAs Condicions_estàndard_(química).
• Standard_state sameAs Norma_stato.
• Standard_state sameAs Condiciones_estándar_(química).
• Standard_state sameAs حالت_استاندارد_ترمودینامیکی.
• Standard_state sameAs État_standard.
• Standard_state sameAs Standard_állapot.
• Standard_state sameAs 표준상태.
• Standard_state sameAs Normaltilstand.
• Standard_state sameAs Stan_standardowy.
• Standard_state sameAs Estado-padrão.
• Standard_state sameAs m.01jvkn.
• Standard_state sameAs Стандартные_состояния.
• Standard_state sameAs Standardno_stanje.
• Standard_state sameAs Standard_state.
• Standard_state sameAs Standardno_stanje.
• Standard_state sameAs Стандартний_стан.
• Standard_state sameAs Q4283776.
• Standard_state sameAs 一般条件.
• Standard_state wasDerivedFrom Standard_state?oldid=646767744.
• Standard_state isPrimaryTopicOf Standard_state.