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)[edit]
These 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 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)