Difference between revisions of "Template:Base quantities and count"
From Bioblast
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| [[elementary entity]] <sup>*,$</sup> || ''U''<sub>''X''</sub> || U || elementary unit || x | | [[elementary entity]] <sup>*,$</sup> || ''U''<sub>''X''</sub> || U || elementary unit || x | ||
|- | |- | ||
| [[Elementary charge |charge]] <sup>*,€</sup> || ''Q''<sub>'' | | [[Elementary charge |charge]] <sup>*,€</sup> || ''Q''<sub>''e''</sub> = ''N''<sub>''X''</sub>·''z''<sub>''X''</sub>·''e'' || I·T || coulomb || C = A·s | ||
|- | |- | ||
| luminous intensity || ''I''<sub>v</sub> || J || [[candela]] || cd | | luminous intensity || ''I''<sub>v</sub> || J || [[candela]] || cd | ||
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::::: [*] »[[SI base units]], except for the canonical 'elementary unit' [x]. The following footnotes are canonical comments. | ::::: [*] »[[SI base units]], except for the canonical 'elementary unit' [x]. The following footnotes are canonical comments. | ||
::::: <sup>*</sup> For the quantities ''n'', ''N'', ''U'', and ''Q'', the entity-type ''X'' of the elementary entity ''U''<sub>''X''</sub> has to be specified in the text and indicated by a subscript: ''n''<sub>O<sub>2</sub></sub>; ''N''<sub>ce</sub>; ''Q''<sub>'' | ::::: <sup>*</sup> For the quantities ''n'', ''N'', ''U'', and ''Q'', the entity-type ''X'' of the elementary entity ''U''<sub>''X''</sub> has to be specified in the text and indicated by a subscript: ''n''<sub>O<sub>2</sub></sub>; ''N''<sub>ce</sub>; ''Q''<sub>''e''</sub>. | ||
::::: <sup>§</sup> [[Amount]] ''n''<sub>''X''</sub> is an elementary quantity, converting the elementary unit [x] into moles [mol] using the [[Avogadro constant]], ''N''<sub>A</sub>. | ::::: <sup>§</sup> [[Amount]] ''n''<sub>''X''</sub> is an elementary quantity, converting the elementary unit [x] into moles [mol] using the [[Avogadro constant]], ''N''<sub>A</sub>. | ||
::::: <sup>$</sup> [[Count]] ''N''<sub>''X''</sub> equals the number of elementary entities ''U''<sub>''X''</sub>. In the SI, the quantity 'count' is explicitly considered as an exception: "Each of the seven base quantities used in the SI is regarded as having its own dimension. .. All other quantities, with the exception of [[count]]s, are derived quantities" ([[Bureau International des Poids et Mesures 2019 The International System of Units (SI)]]). An elementary entity ''U''<sub>''X''</sub> is not a count (''U''<sub>''X''</sub> is not a number of ''U''<sub>''X''</sub>). ''N''<sub>''X''</sub> has the dimension X of a count and ''U''<sub>''X''</sub> has the dimension U of an elementary entity, and both quantities have the same unit, the 'elementary unit' [x]. | ::::: <sup>$</sup> [[Count]] ''N''<sub>''X''</sub> equals the number of elementary entities ''U''<sub>''X''</sub>. In the SI, the quantity 'count' is explicitly considered as an exception: "Each of the seven base quantities used in the SI is regarded as having its own dimension. .. All other quantities, with the exception of [[count]]s, are derived quantities" ([[Bureau International des Poids et Mesures 2019 The International System of Units (SI)]]). An elementary entity ''U''<sub>''X''</sub> is not a count (''U''<sub>''X''</sub> is not a number of ''U''<sub>''X''</sub>). ''N''<sub>''X''</sub> has the dimension X of a count and ''U''<sub>''X''</sub> has the dimension U of an elementary entity, and both quantities have the same unit, the 'elementary unit' [x]. | ||
::::: <sup>€</sup> [[Charge]] is a derived SI quantity. Charge is an elementary quantity, converting the elementary unit [x] into coulombs [C] using the [[elementary charge]], ''e'', or converting moles [mol] into coulombs [C] using the [[Faraday constant]], ''F''. ''z''<sub>''X''</sub> is the charge number of elementary entity ''U''<sub>''X''</sub>, which is a constant for any defined elementary entity ''U''<sub>''X''</sub>. ''Q''<sub>'' | ::::: <sup>€</sup> [[Charge]] is a derived SI quantity. Charge is an elementary quantity, converting the elementary unit [x] into coulombs [C] using the [[elementary charge]], ''e'', or converting moles [mol] into coulombs [C] using the [[Faraday constant]], ''F''. ''z''<sub>''X''</sub> is the charge number of elementary entity ''U''<sub>''X''</sub>, which is a constant for any defined elementary entity ''U''<sub>''X''</sub>. ''Q''<sub>''e''</sub> = ''n''<sub>''X''</sub>·''z''<sub>''X''</sub>·''F'' | ||
Revision as of 10:44, 4 August 2020
Quantity Symbol for quantity Q Symbol for dimension Name of SI unit Symbol for SI unit uQ [*] length l L meter m mass m M kilogram kg time t T second s electric current I I ampere A thermodynamic temperature T Θ kelvin K amount of substance *,§ nX = NX·NA-1 N mole mol count *,$ NX X elementary unit x elementary entity *,$ UX U elementary unit x charge *,€ Qe = NX·zX·e I·T coulomb C = A·s luminous intensity Iv J candela cd
- [*] »SI base units, except for the canonical 'elementary unit' [x]. The following footnotes are canonical comments.
- * For the quantities n, N, U, and Q, the entity-type X of the elementary entity UX has to be specified in the text and indicated by a subscript: nO2; Nce; Qe.
- § Amount nX is an elementary quantity, converting the elementary unit [x] into moles [mol] using the Avogadro constant, NA.
- $ Count NX equals the number of elementary entities UX. In the SI, the quantity 'count' is explicitly considered as an exception: "Each of the seven base quantities used in the SI is regarded as having its own dimension. .. All other quantities, with the exception of counts, are derived quantities" (Bureau International des Poids et Mesures 2019 The International System of Units (SI)). An elementary entity UX is not a count (UX is not a number of UX). NX has the dimension X of a count and UX has the dimension U of an elementary entity, and both quantities have the same unit, the 'elementary unit' [x].
- € Charge is a derived SI quantity. Charge is an elementary quantity, converting the elementary unit [x] into coulombs [C] using the elementary charge, e, or converting moles [mol] into coulombs [C] using the Faraday constant, F. zX is the charge number of elementary entity UX, which is a constant for any defined elementary entity UX. Qe = nX·zX·F
