{
  "vercy": "1.0-draft",
  "publication": {
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    "publishableCanonical": false,
    "generatedAt": "2026-09-11T19:45:32Z",
    "providers": [
      "Claude"
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    "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify",
    "pass": 2,
    "wave": 2,
    "engine": "claude",
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-05T19:00:00Z",
      "ingestedAt": "2026-10-05T20:46:00+00:00",
      "fields": [
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        "ethics",
        "owners"
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  "metaModel": {
    "id": "THING-Q764278",
    "registryId": "vr.tr.standard-molar-entropy",
    "name": "standard molar entropy",
    "version": "0.2.0-wave.2",
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    "domain": [
      "XCT.REL"
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  "model": {
    "registry_id": "vr.tr.standard-molar-entropy",
    "name": "standard molar entropy",
    "purpose": "Let an agent explain standard molar entropy, use tabulated values to compute reaction entropy changes, and relate entropy to spontaneity and thermodynamic trends.",
    "definition": "The entropy of one mole of a substance in its standard state at a specified temperature, usually 298.15 K and 1 bar, measured in joules per kelvin per mole and determined from heat capacity measurements from absolute zero; standard molar entropies are tabulated and used to compute reaction entropies and Gibbs free energies.",
    "what_it_is_for": "Chemical thermodynamics.",
    "affordances": [
      "look up and use standard molar entropies",
      "compute reaction entropy changes",
      "explain trends across substances",
      "relate entropy to Gibbs free energy"
    ],
    "distinguishing_features": [
      "Absolute entropy per mole",
      "Standard state",
      "From third law measurements",
      "Tabulated"
    ],
    "appearance": "Not physical; values in thermodynamic tables.",
    "visual_identification": [
      "Symbol S with a standard-state mark",
      "Units of J/(K mol)",
      "Entropy of formation is not defined the same way as enthalpy of formation"
    ],
    "physical_properties": [
      {
        "quantity": "standard conditions",
        "typical_range": "298.15 K, 1 bar",
        "unit": "",
        "note": "conventional"
      }
    ],
    "families_and_kinds": [
      "standard molar entropies of elements",
      "standard molar entropies of compounds",
      "entropies of gases, liquids and solids",
      "aqueous ion entropies"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "molar entropy",
        "why": "category"
      },
      {
        "relation": "is related to",
        "target": "adiabaticity",
        "why": "entropy in processes"
      },
      {
        "relation": "is related to",
        "target": "melting",
        "why": "entropy of phase change"
      },
      {
        "relation": "is related to",
        "target": "metric",
        "why": "SI units"
      }
    ],
    "identifiers": [],
    "standards_and_regulation": [
      "IUPAC standard state conventions",
      "Thermodynamic data compilations such as NIST-JANAF"
    ],
    "failure_modes_and_hazards": [
      "Mixing standard pressure conventions",
      "Sign errors in reaction entropy",
      "Confusing molar and specific entropy"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": [],
    "agent_conduct": {
      "may": [
        "Report standard molar entropies from reference tables, citing the source, temperature and pressure.",
        "Use them in thermodynamic calculations with consistent standard states."
      ],
      "must_not": [
        "Mix data at different standard pressures, such as 1 bar and 1 atm, without saying so.",
        "Invent entropy values where no measurement exists.",
        "Use thermodynamic predictions to sign off a hazardous process without expert review."
      ],
      "requires_human": [
        "Relying on calculated values for the design of a process that could cause harm if wrong."
      ]
    },
    "ethics": {
      "considerations": [
        "Wrong thermodynamic data can make chemical plants unsafe.",
        "Students rely on correct reference values."
      ],
      "affected_parties": [
        "Chemists and engineers",
        "Students",
        "Workers near chemical processes"
      ]
    },
    "owners": {
      "steward": "Nobody owns the quantity; reference data are compiled by scientific data bodies.",
      "master_systems": []
    }
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q764278: standard molar entropy",
      "url": "https://www.wikidata.org/wiki/Q764278",
      "url_status": "live",
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      "checked_by": "wikidata-api"
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      "id": "wikipedia-en",
      "title": "Wikipedia: Standard molar entropy",
      "url": "https://en.wikipedia.org/wiki/Standard_molar_entropy",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "define",
        "name": "Define",
        "description": "What it is.",
        "rationale": "Third law basis.",
        "layers": [
          {
            "id": "definition",
            "name": "Definition",
            "description": "Definition and units.",
            "findings": [
              {
                "id": "definition-finding",
                "name": "Definition",
                "description": "Definition.",
                "questions": [
                  {
                    "text": "How is standard molar entropy defined, and what standard state applies?",
                    "kind": "definition"
                  },
                  {
                    "text": "Why are values absolute rather than relative?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          },
          {
            "id": "measure",
            "name": "Measure",
            "description": "How it is determined.",
            "findings": [
              {
                "id": "measure-finding",
                "name": "Measure",
                "description": "Measurement.",
                "questions": [
                  {
                    "text": "How are standard molar entropies determined from heat capacity data?",
                    "kind": "provenance"
                  },
                  {
                    "text": "What is residual entropy?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "compute",
        "name": "Compute",
        "description": "Reaction entropy.",
        "rationale": "Products minus reactants.",
        "layers": [
          {
            "id": "reaction",
            "name": "Reaction",
            "description": "Entropy change.",
            "findings": [
              {
                "id": "reaction-finding",
                "name": "Reaction",
                "description": "Reaction entropy.",
                "questions": [
                  {
                    "text": "What is the standard entropy change of this reaction from tabulated values?",
                    "kind": "measurement"
                  },
                  {
                    "text": "Is the sign consistent with the change in gas moles?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "gibbs",
            "name": "Gibbs",
            "description": "Free energy.",
            "findings": [
              {
                "id": "gibbs-finding",
                "name": "Gibbs",
                "description": "Free energy.",
                "questions": [
                  {
                    "text": "How does the entropy change combine with enthalpy to give the Gibbs free energy?",
                    "kind": "definition"
                  },
                  {
                    "text": "At what temperature does the reaction become spontaneous?",
                    "kind": "measurement"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "trends",
        "name": "Trends",
        "description": "Patterns.",
        "rationale": "Structure and state.",
        "layers": [
          {
            "id": "state",
            "name": "State",
            "description": "Gases, liquids, solids.",
            "findings": [
              {
                "id": "state-finding",
                "name": "State",
                "description": "Physical state.",
                "questions": [
                  {
                    "text": "Why do gases have higher standard molar entropies than liquids and solids?",
                    "kind": "definition"
                  },
                  {
                    "text": "How do molecular complexity and mass affect entropy?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          },
          {
            "id": "temperature",
            "name": "Temperature",
            "description": "Temperature dependence.",
            "findings": [
              {
                "id": "temperature-finding",
                "name": "Temperature",
                "description": "Temperature dependence.",
                "questions": [
                  {
                    "text": "How does molar entropy change with temperature?",
                    "kind": "definition"
                  },
                  {
                    "text": "How is it corrected to other temperatures?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "data",
        "name": "Data",
        "description": "Tables and teaching.",
        "rationale": "Reliable sources.",
        "layers": [
          {
            "id": "tables",
            "name": "Tables",
            "description": "Data sources.",
            "findings": [
              {
                "id": "tables-finding",
                "name": "Tables",
                "description": "Data sources.",
                "questions": [
                  {
                    "text": "Which compilations give standard molar entropies, and which conventions do they use?",
                    "kind": "provenance"
                  },
                  {
                    "text": "How consistent are values between sources?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "teach",
            "name": "Teach",
            "description": "Teaching.",
            "findings": [
              {
                "id": "teach-finding",
                "name": "Teach",
                "description": "Teaching.",
                "questions": [
                  {
                    "text": "How can entropy be taught with worked examples?",
                    "kind": "action"
                  },
                  {
                    "text": "Which misconceptions arise?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should entropy be a separate entry?",
    "How should data tables be linked?",
    "How should convention differences be recorded?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}