About: Quantum concentration     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : owl:Thing, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)
QRcode icon
http://dbpedia.demo.openlinksw.com/describe/?url=http%3A%2F%2Fdbpedia.org%2Fresource%2FQuantum_concentration&invfp=IFP_OFF&sas=SAME_AS_OFF

The quantum concentration nQ is the particle concentration (i.e. the number of particles per unit volume) of a system where the interparticle distance is equal to the thermal de Broglie wavelength. Quantum effects become appreciable when the particle concentration is greater than or equal to the quantum concentration, which is defined as: where:M is the mass of the particles in the systemk is the Boltzmann constantT is the temperature as measured in kelvins is the reduced Planck constant The quantum concentration for room temperature protons is about 1/cubic-Angstrom.

AttributesValues
rdfs:label
  • Quantum concentration (en)
  • Concentração quântica (pt)
rdfs:comment
  • The quantum concentration nQ is the particle concentration (i.e. the number of particles per unit volume) of a system where the interparticle distance is equal to the thermal de Broglie wavelength. Quantum effects become appreciable when the particle concentration is greater than or equal to the quantum concentration, which is defined as: where:M is the mass of the particles in the systemk is the Boltzmann constantT is the temperature as measured in kelvins is the reduced Planck constant The quantum concentration for room temperature protons is about 1/cubic-Angstrom. (en)
  • A concentração quântica nQ é a (i.e. onúmero de partículas porunidade de volume) de um sistema onde a distância interpartícula é igual ao comprimento de onda térmico de de Broglie ou equivalentemente quando os comprimentos de onda das partículas são tangentes ("se tocam") mas não se sobrepõe. Efeitos quanticos tornam-se mais apreciáveis quando a concentração de partículas é maior ou igual que a concentração quântica, a qual é definida como: onde:M é a massa das partículas no sistemak é a constante de BoltzmannT é a temperatura medida em kelvin é a constante de Planck reduzida (pt)
dcterms:subject
Wikipage page ID
Wikipage revision ID
Link from a Wikipage to another Wikipage
sameAs
dbp:wikiPageUsesTemplate
has abstract
  • The quantum concentration nQ is the particle concentration (i.e. the number of particles per unit volume) of a system where the interparticle distance is equal to the thermal de Broglie wavelength. Quantum effects become appreciable when the particle concentration is greater than or equal to the quantum concentration, which is defined as: where:M is the mass of the particles in the systemk is the Boltzmann constantT is the temperature as measured in kelvins is the reduced Planck constant The quantum concentration for room temperature protons is about 1/cubic-Angstrom. As the quantum concentration depends on temperature, high temperatures will put most systems in the classical limit unless they have a very high density e.g. a White dwarf. For an ideal gas the Sackur–Tetrode equation can be written in terms of the quantum concentration as (en)
  • A concentração quântica nQ é a (i.e. onúmero de partículas porunidade de volume) de um sistema onde a distância interpartícula é igual ao comprimento de onda térmico de de Broglie ou equivalentemente quando os comprimentos de onda das partículas são tangentes ("se tocam") mas não se sobrepõe. Efeitos quanticos tornam-se mais apreciáveis quando a concentração de partículas é maior ou igual que a concentração quântica, a qual é definida como: onde:M é a massa das partículas no sistemak é a constante de BoltzmannT é a temperatura medida em kelvin é a constante de Planck reduzida Como a concentração quântica depende da temperatura; altas temperaturas irão colocar a maioria dos sistemas no limite clássico sem estes terem uma densidade muito alta, e.g. como uma anã branca. (pt)
prov:wasDerivedFrom
page length (characters) of wiki page
foaf:isPrimaryTopicOf
is Link from a Wikipage to another Wikipage of
is foaf:primaryTopic of
Faceted Search & Find service v1.17_git139 as of Feb 29 2024


Alternative Linked Data Documents: ODE     Content Formats:   [cxml] [csv]     RDF   [text] [turtle] [ld+json] [rdf+json] [rdf+xml]     ODATA   [atom+xml] [odata+json]     Microdata   [microdata+json] [html]    About   
This material is Open Knowledge   W3C Semantic Web Technology [RDF Data] Valid XHTML + RDFa
OpenLink Virtuoso version 08.03.3330 as of Mar 19 2024, on Linux (x86_64-generic-linux-glibc212), Single-Server Edition (378 GB total memory, 50 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software