Arrhenius equation for temperature dependence of reaction rates
E562310
The Arrhenius equation for temperature dependence of reaction rates is a fundamental formula in chemical kinetics that quantitatively relates a reaction’s rate constant to temperature and activation energy, explaining why reactions speed up as temperature increases.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Arrhenius activation energy | 1 |
| Arrhenius equation for temperature dependence of reaction rates canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5991898 — 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: Arrhenius equation for temperature dependence of reaction rates Context triple: [Svante Arrhenius, theory, Arrhenius equation for temperature dependence of reaction rates]
-
A.
Butler–Volmer equation
The Butler–Volmer equation is a fundamental relation in electrochemistry that describes how the rate of an electrode reaction (current density) depends on the electrode potential and reaction kinetics.
-
B.
Fick's first law of diffusion
Fick's first law of diffusion is a fundamental physical law that relates the diffusive flux of particles to the spatial gradient of their concentration, describing how substances move from regions of high to low concentration.
-
C.
Saha ionization equation
The Saha ionization equation is a fundamental formula in astrophysics and plasma physics that relates the ionization state of a gas in thermal equilibrium to its temperature and pressure, crucial for understanding stellar atmospheres and spectra.
-
D.
Herzberg–Teller approximation
The Herzberg–Teller approximation is a refinement in molecular spectroscopy that accounts for vibronic coupling by allowing electronic transition dipole moments to depend on nuclear coordinates, explaining intensity in otherwise forbidden transitions.
-
E.
Clausius–Clapeyron relation
The Clausius–Clapeyron relation is a fundamental thermodynamic equation that describes how the pressure and temperature of a phase transition, such as boiling or condensation, are related.
- 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: Arrhenius equation for temperature dependence of reaction rates Target entity description: The Arrhenius equation for temperature dependence of reaction rates is a fundamental formula in chemical kinetics that quantitatively relates a reaction’s rate constant to temperature and activation energy, explaining why reactions speed up as temperature increases.
-
A.
Butler–Volmer equation
The Butler–Volmer equation is a fundamental relation in electrochemistry that describes how the rate of an electrode reaction (current density) depends on the electrode potential and reaction kinetics.
-
B.
Fick's first law of diffusion
Fick's first law of diffusion is a fundamental physical law that relates the diffusive flux of particles to the spatial gradient of their concentration, describing how substances move from regions of high to low concentration.
-
C.
Saha ionization equation
The Saha ionization equation is a fundamental formula in astrophysics and plasma physics that relates the ionization state of a gas in thermal equilibrium to its temperature and pressure, crucial for understanding stellar atmospheres and spectra.
-
D.
Herzberg–Teller approximation
The Herzberg–Teller approximation is a refinement in molecular spectroscopy that accounts for vibronic coupling by allowing electronic transition dipole moments to depend on nuclear coordinates, explaining intensity in otherwise forbidden transitions.
-
E.
Clausius–Clapeyron relation
The Clausius–Clapeyron relation is a fundamental thermodynamic equation that describes how the pressure and temperature of a phase transition, such as boiling or condensation, are related.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
chemical kinetics equation
ⓘ
empirical equation ⓘ temperature dependence law ⓘ |
| allowsEstimationOf |
activation energy from experimental rate constants
ⓘ
pre-exponential factor from experimental data ⓘ |
| appliesTo |
elementary reactions
ⓘ
many overall reactions as an empirical fit ⓘ |
| ArrheniusPlotDefinition | plot of ln k versus 1/T ⓘ |
| ArrheniusPlotIntercept | ln A ⓘ |
| ArrheniusPlotSlope | −Ea / R ⓘ |
| assumes |
constant activation energy over studied temperature range
ⓘ
single dominant reaction pathway ⓘ |
| canBeLinearizedAs | ln k = ln A − Ea / (R · T) ⓘ |
| describes | temperature dependence of reaction rate constants ⓘ |
| explains | increase of reaction rate with temperature ⓘ |
| field |
chemical kinetics
ⓘ
physical chemistry ⓘ |
| graphType | Arrhenius plot ⓘ |
| hasLimitation |
may fail for complex mechanisms with changing rate-determining step
ⓘ
may not hold over very wide temperature ranges ⓘ |
| hasMathematicalForm | k = A · exp(−Ea / (R · T)) ⓘ |
| hasSpecialCase | zero activation energy gives temperature-independent rate constant ⓘ |
| hasVariable |
A (pre-exponential factor)
ⓘ
Ea (activation energy) ⓘ R (gas constant) ⓘ T (absolute temperature) ⓘ k (rate constant) ⓘ |
| historicalProposalPeriod | late 19th century ⓘ |
| historicalProposedBy | Svante Arrhenius ⓘ |
| implies | rate constant increases with increasing temperature for positive activation energy ⓘ |
| isApproximationOf | transition state theory rate expression ⓘ |
| isTaughtIn |
chemical engineering kinetics courses
ⓘ
undergraduate physical chemistry courses ⓘ |
| isUsedIn |
accelerated aging tests
ⓘ
atmospheric chemistry modeling ⓘ chemical reactor design ⓘ combustion modeling ⓘ materials degradation studies ⓘ reaction rate modeling ⓘ |
| mathematicalType | exponential function of inverse temperature ⓘ |
| namedAfter | Svante Arrhenius ⓘ |
| predicts | exponential dependence of rate constant on inverse temperature ⓘ |
| relates |
rate constant to activation energy
ⓘ
rate constant to temperature ⓘ |
| requires | positive absolute temperature ⓘ |
| requiresUnitsConsistency | activation energy and gas constant units must match ⓘ |
| supportsConcept | activation energy barrier ⓘ |
| usesTemperatureScale |
Kelvin
ⓘ
linked to:
kelvin
|
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: Arrhenius equation for temperature dependence of reaction rates Description of subject: The Arrhenius equation for temperature dependence of reaction rates is a fundamental formula in chemical kinetics that quantitatively relates a reaction’s rate constant to temperature and activation energy, explaining why reactions speed up as temperature increases.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Arrhenius equation for temperature dependence of reaction rates