Talk:Q11430
Autodescription — state of matter (Q11430)
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state of matter⟩ on wikidata tree visualisation (external tool)(depth=1) - Generic queries for classes
Union and disjoint queries
- Instances of state of matter (Q11430)
that are instances of two (or more) of the classes: [1] - Instances of state of matter (Q11430) that are instances of none of the classes classical state of matter (Q52063183) and non-classical state of matter (Q15831577) [2]
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Modeling the relationship between state of matter (Q11430) and phase (Q104837)
editThese two concepts are related, and people informally use the terms "state (of matter)" and "phase" interchangeably. But strictly speaking, they're different; "phase" properly refers to a particular region of space which is filled with homogeneous matter. For example, a mixture of oil and water has two phases but only one distinct state of matter (since both phases are liquids). I was thinking of how to model this. Provisionally, I think we can say that state of matter (Q11430) is a metaclass for phase (Q104837). Then in the example, the aqueous phase and the oil phase in a particular container would each be an instance of liquid state of matter (Q6761456). That said, there may be corner cases, such as pseudo-states of matter involving colloids or nanostructured materials whose constituent particles are small enough that the material can't be adequately described as assemblies of homogeneous phases. 73.223.72.200 03:14, 7 May 2024 (UTC)