Property talk:P873
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phase point
phase point to describe critical point and triple point (see talk page for an example)
phase point to describe critical point and triple point (see talk page for an example)
Description | phase point to describe critical point and triple point, use of qualifier to describe the pressure, the temperature and the matter phase characterizing the point | |||||||||
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Represents | phase (Q104837) | |||||||||
Data type | Item | |||||||||
Domain | According to this template:
term
According to statements in the property:
When possible, data should only be stored as statementstype of chemical entity (Q113145171) | |||||||||
Allowed values | According to this template:
critical point (Q111059),triple point (Q106410)
When possible, data should only be stored as statements | |||||||||
Usage notes | jako wartość należy podać punkt potrójny (Q106410) lub punkt krytyczny (Q111059) oraz temperaturę (P2076) i ciśnienie (P2077) jako kwalifikatory; podanie gęstości (P2054) albo objętości molowej (P2807) jest opcjonalne | |||||||||
Example | According to this template:
see Wikidata:Chemistry_task_force/Properties.
According to statements in the property:
When possible, data should only be stored as statementsundecane (Q150731) → critical point (Q111059) butane (Q134192) → triple point (Q106410) | |||||||||
Lists |
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Proposal discussion | Proposal discussion | |||||||||
Current uses |
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Search for values |
[create Create a translatable help page (preferably in English) for this property to be included here]
One of triple point (Q106410), critical point (Q111059): value must be one of the specified items. Please expand list if needed. (Help)
Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). List of violations of this constraint: Database reports/Constraint violations/P873#One of, values statistics, search, SPARQL
Type “type of chemical entity (Q113145171)”: item must contain property “instance of (P31)” with classes “type of chemical entity (Q113145171)” or their subclasses (defined using subclass of (P279)). (Help)
Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). List of violations of this constraint: Database reports/Constraint violations/P873#Type Q113145171, SPARQL
Required qualifier “temperature (P2076)”: this property should be used with the listed qualifier. (Help)
Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). List of violations of this constraint: Database reports/Constraint violations/P873#mandatory qualifier, SPARQL
Required qualifier “under pressure (P2077)”: this property should be used with the listed qualifier. (Help)
Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). List of violations of this constraint: Database reports/Constraint violations/P873#mandatory qualifier, SPARQL
Qualifiers “density (P2054), molar volume (P2807), phase of matter (P515), temperature (P2076), under pressure (P2077), statement is subject of (P805), uncertainty corresponds to (P2571), reason for deprecated rank (P2241), reason for preferred rank (P7452), criterion used (P1013)”: this property should be used only with the listed qualifiers. (Help)
Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). List of violations of this constraint: Database reports/Constraint violations/P873#allowed qualifiers, SPARQL
Scope is as main value (Q54828448): the property must be used by specified way only (Help)
List of violations of this constraint: Database reports/Constraint violations/P873#Scope, hourly updated report, SPARQLCitation needed: the property must have at least one reference (Help)
Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). List of violations of this constraint: Database reports/Constraint violations/P873#citation needed
This property is being used by: Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.) |
Example of use
[edit]For the triple point
- phase point (item):triple point (Q106410)
- temperature (P2076) (number): XXX K
- under pressure (P2077) (number): XXX Pa
- phase of matter (P515) (item):solid
- phase of matter (P515) (item):vapor
- phase of matter (P515) (item):liquid
In case of triple point between different solid phases, an item has to be created for each solid phase and then the point has to be defined as below:
- phase point (item):triple point (Q106410)
- temperature (P2076) (number): XXX K
- under pressure (P2077) (number): XXX Pa
- phase of matter (P515) (item):Ice I
- phase of matter (P515) (item):Ice II
- phase of matter (P515) (item):Ice III
For the critical point:
- phase point (item):critical point (Q111059)
- temperature (P2076) (number): XXX K
- under pressure (P2077) (number): XXX Pa
Snipre (talk) 12:13, 11 September 2013 (UTC)
How to use this property?
[edit]@Snipre: This property exists since 600 days and it is still only used on water (Q283). Moreover, it looks to me that in this example it's even wrongly used. Can you please add a few more examples or update the documentation for clarification? --Pasleim (talk) 10:31, 5 May 2015 (UTC)
- @Pasleim: Done. Snipre (talk) 16:59, 5 October 2015 (UTC)
Categories:
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- Chemical properties
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