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A selected quantity of matter or region of space separated conceptually from its surroundings by a boundary. The permitted exchange of energy and matter distinguishes isolated, closed, and open systems.
This is an authored directed relation from the source endpoint to the target endpoint.
Relation ID
thermo_equilibrium_theory_to_system
Relation type
Describes / governs describes-governs
Direction
source → target
Endpoint roles
source: Describes / governs; target: Described / governed by
Authored annotation
equilibrium macroscopic laws
Authored explanation
Equilibrium thermodynamics describes admissible equilibrium states and process constraints for macroscopic systems without specifying their microscopic constitution.
How to interpret this relation type
A theory, law, or interaction describes the behavior of the target within a stated regime. The edge detail must state important limits or qualifications.
Relation sources
Wikipedia — Thermodynamics — Thermodynamics · encyclopedic reference · source ID wp-physics-thermodynamics
This is an authored directed relation from the source endpoint to the target endpoint.
Relation ID
thermodynamics_system_to_heat_capacity
Relation type
State / property description state-description
Direction
source → target
Endpoint roles
source: Has state / property description; target: State / property description of
Authored annotation
has constraint-dependent thermal response
Authored explanation
A thermodynamic system can be assigned heat capacities only after its composition, state variables, phase behavior, and constraints such as fixed volume or pressure are specified.
How to interpret this relation type
The target represents a state, property, observable, or state-dependent description associated with the source system or theory.
Relation sources
David Tong — Statistical Physics — Statistical Physics · University of Cambridge lecture notes · source ID tong-statistical-physics
OpenStax — Chemistry 2e — Chemistry 2e · peer-reviewed open textbook · source ID openstax-chemistry-2e
This is an authored directed relation from the source endpoint to the target endpoint.
Relation ID
thermo_system_to_state
Relation type
State / property description state-description
Direction
source → target
Endpoint roles
source: Has state / property description; target: State / property description of
Authored annotation
macroscopic condition
Authored explanation
A thermodynamic state records the macroscopic condition of a selected system using a sufficient set of state variables while omitting microscopic coordinates.
How to interpret this relation type
The target represents a state, property, observable, or state-dependent description associated with the source system or theory.