Wikidata:Property proposal/vanDerWaalsConstant

Van Der Waals Constant

Originally proposed at Wikidata:Property proposal/Natural science

   Not done

Description	constant used in the en:Van der Waals equation
Data type	Number (not available yet)
Domain	item
Allowed units	L^2 bar/mol^2 or L/mol
Example 1	helium (Q560) → 0.0346 L^2 bar/mol^2 applies to part (P518) = pressure (Q39552)
Example 2	helium (Q560) → 0.0238 L/mol applies to part (P518) = volume (Q39297)
Example 3	oxygen (Q629) → 1.382 L^2 bar/mol^2 applies to part (P518) = pressure (Q39552)
Example 4	oxygen (Q629) → 0.03186 L/mol applies to part (P518) = volume (Q39297)
Source	https://en.wikipedia.org/wiki/Van_der_Waals_constants_(data_page)

Motivation

Representing the constants used in the Van Der Waals equation. Alternatively, two different properties could be created for the two coefficients Tcp-ip (talk) 18:46, 4 July 2020 (UTC)

Discussion

• Yes I think it would have to be two separate properties. ArthurPSmith (talk) 19:57, 6 July 2020 (UTC)
•  Support The same as ArthurPSmith I think it would be easier to manage two different properties, especially for the constrains. Pamputt (talk) 19:55, 8 July 2020 (UTC)
• You can just adjust this page to include two separate proposals - maybe label them "van der Waals constant a" and "van der Waals constant b" since they are usually given the 'a' and 'b' labels? ArthurPSmith (talk) 19:58, 8 July 2020 (UTC)
• @Tcp-ip: pinging you to let you know we're discussing this - are you able to create the two proposals here? ArthurPSmith (talk) 19:59, 8 July 2020 (UTC)
• I have presented two proposals for separate properties Tcp-ip (talk) 09:55, 9 July 2020 (UTC)