Gay-Lussac's law
E485187
Gay-Lussac's law is a gas law stating that the pressure of a fixed mass of gas at constant volume is directly proportional to its absolute temperature.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Gay-Lussac's law canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T4947667 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Gay-Lussac's law Context triple: [Boyle's law, relatedLaw, Gay-Lussac's law]
-
A.
Charles's law
Charles's law is a fundamental gas law stating that, at constant pressure, the volume of a fixed amount of gas is directly proportional to its absolute temperature.
-
B.
Boyle's law
Boyle's law is a fundamental gas law in physics and chemistry stating that the pressure of a fixed amount of gas is inversely proportional to its volume at constant temperature.
-
C.
Avogadro's law
Avogadro's law is a fundamental principle of chemistry stating that equal volumes of gases, at the same temperature and pressure, contain equal numbers of molecules.
-
D.
ideal gas law
The ideal gas law is a fundamental equation in thermodynamics that relates the pressure, volume, temperature, and amount of an idealized gas, providing a simple model for gas behavior under many conditions.
-
E.
combined gas law
The combined gas law is a fundamental gas equation in physics and chemistry that relates pressure, volume, and temperature of a fixed amount of gas by merging Boyle’s, Charles’s, and Gay-Lussac’s laws into a single relationship.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Gay-Lussac's law Target entity description: Gay-Lussac's law is a gas law stating that the pressure of a fixed mass of gas at constant volume is directly proportional to its absolute temperature.
-
A.
Charles's law
Charles's law is a fundamental gas law stating that, at constant pressure, the volume of a fixed amount of gas is directly proportional to its absolute temperature.
-
B.
Boyle's law
Boyle's law is a fundamental gas law in physics and chemistry stating that the pressure of a fixed amount of gas is inversely proportional to its volume at constant temperature.
-
C.
Avogadro's law
Avogadro's law is a fundamental principle of chemistry stating that equal volumes of gases, at the same temperature and pressure, contain equal numbers of molecules.
-
D.
ideal gas law
The ideal gas law is a fundamental equation in thermodynamics that relates the pressure, volume, temperature, and amount of an idealized gas, providing a simple model for gas behavior under many conditions.
-
E.
combined gas law
The combined gas law is a fundamental gas equation in physics and chemistry that relates pressure, volume, and temperature of a fixed amount of gas by merging Boyle’s, Charles’s, and Gay-Lussac’s laws into a single relationship.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
gas law
ⓘ
physical law ⓘ |
| alsoKnownAs |
Amontons's law (in some historical contexts)
NERFINISHED
ⓘ
pressure–temperature law NERFINISHED ⓘ |
| appliesTo | ideal gas ⓘ |
| assumes | ideal gas behavior ⓘ |
| category | laws of thermodynamics (gas behavior) ⓘ |
| condition |
constant volume
ⓘ
fixed mass of gas ⓘ |
| derivedFrom | ideal gas equation PV = nRT ⓘ |
| describes | relationship between pressure and temperature of a gas at constant volume ⓘ |
| domain | macroscopic gases ⓘ |
| field |
kinetic theory of gases
ⓘ
physical chemistry ⓘ thermodynamics ⓘ |
| historicalPeriod | early 19th century ⓘ |
| holdsWhen |
amount of gas is constant
ⓘ
volume is constant ⓘ |
| implies | P/T is constant for a given gas at constant volume ⓘ |
| isSpecialCaseOf | ideal gas law NERFINISHED ⓘ |
| limitation |
deviations occur at high pressure
ⓘ
deviations occur at very low temperature ⓘ |
| mathematicalForm |
P = kT
ⓘ
P ∝ T ⓘ P1 / T1 = P2 / T2 ⓘ |
| namedAfter | Joseph Louis Gay-Lussac NERFINISHED ⓘ |
| predicts |
pressure decreases when temperature decreases at constant volume
ⓘ
pressure increases when temperature increases at constant volume ⓘ |
| proportionality | pressure is directly proportional to absolute temperature ⓘ |
| relatedTo |
Boyle's law
NERFINISHED
ⓘ
Charles's law NERFINISHED ⓘ combined gas law ⓘ ideal gas law NERFINISHED ⓘ |
| relatesVariable |
pressure
ⓘ
temperature ⓘ |
| requires | temperature measured in kelvin ⓘ |
| requiresUnit |
pressure in absolute units
ⓘ
temperature in kelvin scale ⓘ |
| taughtIn |
general chemistry courses
ⓘ
introductory physics courses ⓘ |
| usedIn |
aerosol can safety analysis
ⓘ
engineering thermodynamics ⓘ gas thermometer calibration ⓘ pressure vessel design ⓘ |
| usesTemperatureScale | absolute temperature ⓘ |
| variableHeldConstant |
amount of substance
ⓘ
volume ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Gay-Lussac's law Description of subject: Gay-Lussac's law is a gas law stating that the pressure of a fixed mass of gas at constant volume is directly proportional to its absolute temperature.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.