{ "model": { "rank": 8681, "code": "thing-q487112", "model_id": "vr.tr.molar-volume", "name": "molar volume", "purpose": "Let an agent handle molar volume by substance, conditions, calculation and use in chemistry, stating the reference conditions explicitly.", "family": "Thing Registry", "category": "Cross-cutting context", "status": "research-draft", "kind": "thing", "plane": "XCT", "domain": "XCT.REL", "industry": "", "version": "", "url": "/models/thing/q487112/", "tier": 2, "score": 50, "payload": { "layer": "wikidata", "aliases": [], "aliasCount": 0, "merged": 0, "knownIn": 50, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q487112", "url": "https://www.wikidata.org/wiki/Q487112", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-11T10:00:33Z", "providers": [ "Claude" ], "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify", "pass": 2, "wave": 1, "engine": "claude" }, "metaModel": { "id": "THING-Q487112", "registryId": "vr.tr.molar-volume", "name": "molar volume", "version": "0.2.0-wave.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "XCT.REL" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q487112/", "model": { "registry_id": "vr.tr.molar-volume", "name": "molar volume", "purpose": "Let an agent handle molar volume by substance, conditions, calculation and use in chemistry, stating the reference conditions explicitly.", "definition": "The volume occupied by one mole of a substance at a given temperature and pressure, measured in cubic metres per mole; for an ideal gas it is about 22.71 L/mol at 0 degC and 100 kPa, or 22.41 L/mol at 0 degC and 101.325 kPa.", "what_it_is_for": "Relating amount of substance to volume in chemistry and engineering.", "affordances": [ "compute molar volume from density and molar mass", "use ideal gas molar volumes at stated conditions", "correct for non-ideal behaviour", "convert between mass, moles and volume" ], "distinguishing_features": [ "Volume per mole", "Depends on temperature and pressure", "Near-constant for ideal gases at given conditions", "Varies for liquids and solids" ], "appearance": "Not visible; a computed or tabulated quantity.", "visual_identification": [ "Units m3/mol or L/mol", "Reference conditions such as STP", "Specific volume is per unit mass instead" ], "physical_properties": [ { "quantity": "ideal gas, 0 degC and 100 kPa", "typical_range": "about 22.71", "unit": "L/mol", "note": "IUPAC STP" }, { "quantity": "ideal gas, 0 degC and 101.325 kPa", "typical_range": "about 22.41", "unit": "L/mol", "note": "older convention" } ], "families_and_kinds": [ "molar volume of gases", "molar volume of liquids", "molar volume of solids", "partial molar volume" ], "related_models": [ { "relation": "is a kind of", "target": "molar quantity and intensive quantity", "why": "category" }, { "relation": "is related to", "target": "ideal gas law", "why": "relation" }, { "relation": "is related to", "target": "density and molar mass", "why": "quantities" }, { "relation": "is contrasted with", "target": "specific volume", "why": "per mass" } ], "identifiers": [], "standards_and_regulation": [ "IUPAC Green Book", "ISO 80000-9" ], "failure_modes_and_hazards": [ "Using the wrong reference conditions", "Applying ideal values to real gases at high pressure" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "value", "name": "Value", "description": "Computation.", "rationale": "Conditions decide values.", "layers": [ { "id": "compute", "name": "Compute", "description": "From data.", "findings": [ { "id": "compute-finding", "name": "Compute", "description": "Computation.", "questions": [ { "text": "What is the molar volume from density and molar mass?", "kind": "measurement" }, { "text": "In which units?", "kind": "definition" } ] } ] }, { "id": "conditions", "name": "Conditions", "description": "Reference state.", "findings": [ { "id": "conditions-finding", "name": "Conditions", "description": "Reference conditions.", "questions": [ { "text": "Which temperature and pressure are assumed?", "kind": "definition" }, { "text": "Which STP convention is used?", "kind": "boundary" } ] } ] } ] }, { "id": "gases", "name": "Gases", "description": "Ideal and real.", "rationale": "Real gases deviate.", "layers": [ { "id": "ideal", "name": "Ideal", "description": "Ideal gas law.", "findings": [ { "id": "ideal-finding", "name": "Ideal", "description": "Ideal gas.", "questions": [ { "text": "What is the ideal gas molar volume at these conditions?", "kind": "measurement" }, { "text": "Is the ideal approximation valid?", "kind": "boundary" } ] } ] }, { "id": "real", "name": "Real", "description": "Corrections.", "findings": [ { "id": "real-finding", "name": "Real", "description": "Real gas.", "questions": [ { "text": "What correction, such as the compressibility factor, is needed?", "kind": "measurement" }, { "text": "From which equation of state?", "kind": "provenance" } ] } ] } ] }, { "id": "condensed", "name": "Condensed", "description": "Liquids and solids.", "rationale": "Condensed phases vary.", "layers": [ { "id": "liquids", "name": "Liquids", "description": "Values.", "findings": [ { "id": "liquids-finding", "name": "Liquids", "description": "Liquid molar volume.", "questions": [ { "text": "What is the molar volume of this liquid at this temperature?", "kind": "measurement" }, { "text": "From which data source?", "kind": "provenance" } ] } ] }, { "id": "mixtures", "name": "Mixtures", "description": "Partial molar volume.", "findings": [ { "id": "mixtures-finding", "name": "Mixtures", "description": "Mixtures.", "questions": [ { "text": "Does mixing change the total volume?", "kind": "boundary" }, { "text": "How is partial molar volume used?", "kind": "definition" } ] } ] } ] }, { "id": "teaching", "name": "Teaching", "description": "Learning.", "rationale": "Clear conventions help.", "layers": [ { "id": "explain", "name": "Explain", "description": "Simple terms.", "findings": [ { "id": "explain-finding", "name": "Explain", "description": "Explanation.", "questions": [ { "text": "How can molar volume be explained with an example?", "kind": "action" }, { "text": "Which convention does the syllabus use?", "kind": "provenance" } ] } ] }, { "id": "errors", "name": "Errors", "description": "Common mistakes.", "findings": [ { "id": "errors-finding", "name": "Errors", "description": "Common mistakes.", "questions": [ { "text": "Is an outdated STP value being used?", "kind": "boundary" }, { "text": "How can it be corrected?", "kind": "action" } ] } ] } ] } ] }, "openQuestions": [ "Should partial molar volume be a separate entry?", "How should reference conditions be recorded?", "How should real-gas corrections be linked?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "abstract concept", "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.", "facetsInferred": true, "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.", "purpose": "Give an agent a durable, checkable way to recognise a molar volume, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent handle molar volume by substance, conditions, calculation and use in chemistry, stating the reference conditions explicitly.", "characteristics": { "substance": "abstract", "origin": "conceptual", "agency": "inert" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Described in 50 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is." ], "openQuestionsForResearch": [ "Which of the bundles below does a real task actually need, and which are ceremony?", "What does this thing have that the facets do not capture at all?", "Which neighbouring kind is most often confused with a molar volume, and on what evidence are they told apart?" ], "whatItIsMadeOf": "an abstraction with no physical instance", "physicalCharacter": [ "Does nothing on its own; everything it does, something else did to it.", "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing." ], "whatCanBeDoneWithIt": [ "observe it, measure it, record its state" ], "howItIsRecognised": [ "Nothing to see. What is recognised is an instance of it, and which instances count is exactly what is argued about." ], "relatedModels": [], "standing": "Described in 50 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one molar volume from another, and a molar volume from things that resemble it.", "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.", "layers": [ { "id": "naming-and-identifiers", "name": "Names and identifiers", "description": "The names this thing goes by and the identifiers that survive translation and time.", "findings": [ { "id": "preferred-name-and-aliases", "name": "Preferred name, aliases and local names", "description": "Which name to use, which names mean the same thing, and which merely sound similar.", "questions": [ { "id": "preferred-name-and-aliases-q01", "text": "What identifies and describes the name of a molar volume, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "preferred-name-and-aliases-q02", "text": "Who or what asserted this about the name of a molar volume, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "preferred-name-and-aliases-q03", "text": "What may an agent decide or do once the name of a molar volume is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "stable-identifiers", "name": "Stable identifiers and external keys", "description": "Identifiers that keep pointing at this kind of thing across systems and languages.", "questions": [ { "id": "stable-identifiers-q01", "text": "What identifies and describes an identifier for a molar volume, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stable-identifiers-q02", "text": "Who or what asserted this about an identifier for a molar volume, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stable-identifiers-q03", "text": "What may an agent decide or do once an identifier for a molar volume is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "classification-and-granularity", "name": "Classification and granularity", "description": "Where a molar volume sits among kinds, and how finely a task needs to cut it.", "findings": [ { "id": "kind-and-parents", "name": "Kind, parents and neighbouring kinds", "description": "The classes this thing belongs to and the ones it is next to.", "questions": [ { "id": "kind-and-parents-q01", "text": "What identifies and describes the kind of a molar volume, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "kind-and-parents-q02", "text": "Who or what asserted this about the kind of a molar volume, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "kind-and-parents-q03", "text": "What may an agent decide or do once the kind of a molar volume is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "distinguishing-features", "name": "Distinguishing features", "description": "What separates a molar volume from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a molar volume, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "distinguishing-features-q02", "text": "Who or what asserted this about what distinguishes a molar volume, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "distinguishing-features-q03", "text": "What may an agent decide or do once what distinguishes a molar volume is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "state-and-lifecycle", "name": "State and lifecycle", "description": "The states a molar volume passes through and the events that move it between them.", "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.", "layers": [ { "id": "lifecycle-stages", "name": "Lifecycle stages", "description": "From coming into existence to ceasing to be one of these.", "findings": [ { "id": "stages-and-transitions", "name": "Stages and transitions", "description": "The stages worth naming and what moves a molar volume between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a molar volume, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stages-and-transitions-q02", "text": "Who or what asserted this about the lifecycle of a molar volume, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stages-and-transitions-q03", "text": "What may an agent decide or do once the lifecycle of a molar volume is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "observations-and-status", "name": "Observations and current status", "description": "What is observed about a molar volume, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a molar volume is recorded so that it can be superseded rather than overwritten.", "questions": [ { "id": "observation-record-q01", "text": "What identifies and describes an observation of a molar volume, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "observation-record-q02", "text": "Who or what asserted this about an observation of a molar volume, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "observation-record-q03", "text": "What may an agent decide or do once an observation of a molar volume is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "definitions-in-contest", "name": "Definitions and who holds them", "description": "What molar volume is taken to mean, and by whom.", "rationale": "When a field disagrees about a concept, the disagreement is the content. A model that picks one definition silently destroys the information.", "layers": [ { "id": "competing-definitions", "name": "Competing definitions", "description": "The main readings and the traditions behind them.", "findings": [ { "id": "definition-map", "name": "Definitions and their holders", "description": "Each definition with the school or body that holds it.", "questions": [ { "id": "definition-map-q01", "text": "Which definitions of molar volume are in use, and which tradition or body holds each?", "kind": "definition" }, { "id": "definition-map-q02", "text": "What turns on the difference between them in practice?", "kind": "boundary" } ] } ] }, { "id": "operationalisation", "name": "Operationalisation", "description": "How it is measured or applied when it has to be.", "findings": [ { "id": "operational-record", "name": "Measures and proxies", "description": "Instruments and indicators used to stand in for it.", "questions": [ { "id": "operational-record-q01", "text": "How is molar volume operationalised or measured in practice, and by what instrument?", "kind": "measurement" }, { "id": "operational-record-q02", "text": "What does that operationalisation leave out, and when does that matter?", "kind": "boundary" } ] } ] } ] }, { "id": "instances-and-use", "name": "Instances, use and consequence", "description": "What counts as an instance of molar volume and what follows from calling something that.", "rationale": "Applying a concept is an act with consequences, so a model must say what the label licenses and what it does not.", "layers": [ { "id": "instances", "name": "What counts as an instance", "description": "Clear cases, borderline cases and non-cases.", "findings": [ { "id": "instance-tests", "name": "Tests for an instance", "description": "What would settle whether something falls under it.", "questions": [ { "id": "instance-tests-q01", "text": "What would settle whether something is an instance of molar volume?", "kind": "boundary" }, { "id": "instance-tests-q02", "text": "Which borderline cases are argued about, and on what grounds?", "kind": "definition" } ] } ] }, { "id": "consequence", "name": "Consequence of application", "description": "Rights, duties or decisions that follow from the label.", "findings": [ { "id": "consequence-record", "name": "What the label licenses", "description": "What an agent may do once something is classified this way.", "questions": [ { "id": "consequence-record-q01", "text": "What follows practically once something is treated as molar volume?", "kind": "action" }, { "id": "consequence-record-q02", "text": "What must an agent not infer from the label alone?", "kind": "action" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a molar volume came from and when it held.", "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.", "layers": [ { "id": "source-and-authority", "name": "Source and authority", "description": "Who said it, on what evidence, and how strongly.", "findings": [ { "id": "claim-provenance", "name": "Claim provenance and confidence", "description": "The authority behind each claim about a molar volume and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a molar volume, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "claim-provenance-q02", "text": "Who or what asserted this about a claim about a molar volume, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "claim-provenance-q03", "text": "What may an agent decide or do once a claim about a molar volume is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "time-and-versions", "name": "Time, versions and supersession", "description": "When a claim was true, when it was learnt, and what replaced it.", "findings": [ { "id": "validity-and-supersession", "name": "Validity period and supersession", "description": "How an old claim about a molar volume is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a molar volume, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "validity-and-supersession-q02", "text": "Who or what asserted this about the validity of a claim about a molar volume, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "validity-and-supersession-q03", "text": "What may an agent decide or do once the validity of a claim about a molar volume is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 5, "layers": 10, "findings": 12, "questions": 32 } } } }