Property talk:P2056

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specific heat capacity
specific heat capacity of a substance, with phase of matter and temperature as qualifiers

Description	heat capacity of a substance with phase of matter and temperature as qualifiers
Represents	specific heat capacity (Q487756)
Data type	Quantity
Template parameter	en, fr and de infoboxes about chemicals
Domain	term (note: this should be moved to the property statements)
Allowed values	0 ≤ 𝓧 ≤ 1,000,000
Allowed units	joule per kilogram kelvin difference (Q69423273) or kilojoule per kilogram kelvin difference (Q108834064)
Usage notes	Include the phase of matter (P515) and temperature (P2076) as qualifiers, since specific heat varies with these.
Example	gold (Q897) → 129.1 joule per kilogram kelvin difference water (Q283) → 4.18 kilojoule per kilogram kelvin difference
Tracking: usage	Category:Pages using Wikidata property P2056 (Q55594522)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Minimum and maximum Items with highest numeric value Items with lowest numeric value Database reports/Constraint violations/P2056 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 23 Main statement 21 91.3% of uses Qualifier 2 8.7% of uses

[create Create a translatable help page (preferably in English) for this property to be included here]

Units: “joule per kilogram kelvin difference (Q69423273), kilojoule per kilogram kelvin difference (Q108834064)”: value unit must be one of listed. (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/P2056#Units

Required qualifier “phase of matter (P515)”: 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/P2056#mandatory qualifier, 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/P2056#mandatory qualifier, 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/P2056#Scope, hourly updated report, SPARQL

Range from “0” to “1000000”: values should be in the range from “0” to “1000000”. (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/P2056#Range

Citation 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/P2056#citation needed

Item “instance of (P31)”: Items with this property should also have “instance of (P31)”. (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/P2056#Item P31, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (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/P2056#Entity types

This property is being used by: he:תבנית:יסוד כימי, he:תבנית:יסוד כימי/גז, he:תבנית:יסוד כימי/נוזל ca:Plantilla:Infotaula compost químic eu:Txantiloi:Konposatu kimiko infotaula/probak, eu:Txantiloi:Konposatu kimiko infotaula ast:Plantía:Ficha de compuestu químicu ha:Template:Infobox chemical incubator:Template:Wp/shi/Infobox chemical kab:Talɣa:Infobox chemical shi:Talɣa:Infobox chemical ga:Teimpléad:WD Bosca Sonraí Comhdhúil Cheimiceach ff:Template:Infobox chemical gv:Clowan:WD Kishtey Fys Co-vunstoo Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

Rename to avoid ambiguity?

There are several other measures of heat capacity, e.g. (extensive) heat capacity (Q179388), molar heat capacity (Q65122153). This should be renamed to remove ambiguity. I suggest "specific heat", which is unambiguous and the same number of words. 73.202.12.249 16:29, 15 September 2019 (UTC)

I restricted the property to specific heat capacity (Q487756), with unit joule per kilogram kelvin difference (Q69423273). If we want to store other heat capacities, like molar or absolute, then we should propose additional properties.

PS: The overall goal should be to have properties whose allowed units measure quantities of the same physical dimension (indicated by ISQ dimension (P4020)). This property (P2056) was one of the 25 or so which till now violated that principle.

Toni 001 (talk) 09:23, 8 October 2021 (UTC)