# Thermodynamics
## MicroSim spec
- **Recommended sim type:** phase diagram
- **Microsimmability score:** 88/100
- **Layout:** drawing region (canvas) on top; control region (sliders/buttons) below.
### Parameters (tunable controls)
- `Temperature T - 200 to 600 K`
- `Pressure P - 0.1 to 10 atm`
- `Volume / specific volume v`
### What animates
A state point traverses a pressure-volume or temperature-[[Entropy|entropy]] diagram across phase boundaries as the conditions change, tracing a process path and the work or heat it implies.
### Learning objective
Relate a process path on a thermodynamic diagram to the heat and work exchanged.
## Links (Wikipedia order)
<!-- injected from _registry/childlinks/Thermodynamics.json (2026-07-30T02:09:12Z) -->
`ASHRAE` · `ASHRAE_Handbook` · `ASTM_International` · `Absolute_zero` · `Absorption-compression_heat_pump` · `Absorption_refrigerator` · `Acoustics` · `Adiabatic_accessibility` · `Adiabatic_process` · [[Aerospace_engineering]] · `Air-mixing_plenum` · `Air_Conditioning,_Heating_and_Refrigeration_Institute` · `Air_Movement_and_Control_Association` · `Air_barrier` · `Air_changes_per_hour` · `Air_conditioning` · `Air_door` · `Air_filter` · `Air_flow_meter` · `Air_handler` · `Air_ioniser` · `Air_pump` · `Air_purifier` · `Air_source_heat_pump` · `An_Inquiry_Concerning_the_Source_of_the_Heat_Which_Is_Excited_by_Friction` · `Analytical_mechanics` · `Antifreeze` · `Applied_physics` · `Aquastat` · `Architectural_acoustics` · [[Architectural_engineering]] · `Architectural_technologist` · `Aristotle` · `Astrophysics` · `Atkinson_cycle` · `Atmospheric_physics` · `Atmospheric_thermodynamics` · `Atomic,_molecular,_and_optical_physics` · `Atomic_physics` · `Attic_fan` · `Automatic_balancing_valve` · `Autonomous_building` · `Axiom` · `BACnet` · `BSRIA` · `Back_boiler` · `Bake-out` · `Barometer` · `Barrier_pipe` · `Basic_research` · `Benjamin_Thompson` · `Biochemistry` · `Biological_thermodynamics` · [[Biomedical_engineering]] · `Biophysics` · `Black_hole` · `Black_hole_thermodynamics` · `Blast_damper` · `Blower_door` · `Boiler` · `Branches_of_physics` · `Brayton_cycle` · `Bridgman's_thermodynamic_equations` · `Brownian_motion` · `Brownian_ratchet` · `Building_Research_Establishment` · `Building_automation` · `Building_envelope` · `Building_information_modeling` · `Building_insulation_material` · `Building_science` · [[Building_services_engineering]] · `Caloric_theory` · `Calorimeter` · `Carbon_dioxide_sensor` · `Carnot's_theorem_(thermodynamics)` · `Carnot_cycle` · `Carnot_heat_engine` · `Celestial_mechanics` · `Cell_biology` · `Central_heating` · `Central_solar_heating` · `Centrifugal_fan` · `Ceramic_heater` · `Chartered_Institution_of_Building_Services_Engineers` · [[Chemical_engineering]] · `Chemical_oscillator` · `Chemical_physics` · `Chemical_potential` · `Chemical_reaction` · `Chemical_thermodynamics` · [[Chemistry]] · `Cheng_cycle` · `Chilled_beam` · `Chilled_water` · `Chiller` · `Classical_electromagnetism` · `Classical_mechanics` · `Classical_physics` · `Clausius_theorem` · `Clean_air_delivery_rate` · [[Closed_system]] · `Combined-cycle_power_plant` · `Compressibility` · `Compressibility_factor` · `Compressor` · `Computational_physics` · `Condensate_pump` · `Condensed_matter_physics` · `Condenser_(heat_transfer)` · `Condensing_boiler` · `Conjugate_variables_(thermodynamics)` · `Conservation_of_energy` · `Constant_air_volume` · `Constantin_Carathéodory` · `Continuum_mechanics` · `Control_valve` · `Control_volume` · `Convection` · `Convection_heater` · `Coolant` · `Cooling_tower` · [[Corrosion_engineering]] · `Cross_ventilation` · `Crystallography` · `Damper_(flow)` · `Daniel_Bernoulli` · `Dedicated_outdoor_air_system` · `Deep_energy_retrofit` · `Deep_water_source_cooling` · `Dehumidifier` · `Demand_controlled_ventilation` · `Denis_Papin` · `Diesel_cycle` · `Dilution_(equation)` · `Displacement_ventilation` · `District_cooling` · `District_heating` · `Domestic_energy_consumption` · `Duct_(flow)` · `Duct_leakage_testing` · `Ecological_economics` · `Economics` · `Economizer` · `Einstein_refrigerator` · `Electric_heating` · `Electrostatic_precipitator` · `Endoreversible_thermodynamics` · [[Energy]] · `Engine` · [[Engineering]] · [[Engineering_physics]] · `English_people` · `Enthalpy` · [[Entropy]] · `Entropy_(energy_dispersal)` · `Entropy_and_life` · [[Environmental_engineering]] · `Equation_of_state` · `Equilibrium_thermodynamics` · `Equivalence_relation` · `Ericsson_cycle` · `Evaporative_cooler` · `Evaporator` · `Event_horizon` · `Exergy` · `Expansion_tank` · `Experimental_physics` · `Explosion` · `Fan_(machine)` · `Fan_coil_unit` · `Fan_filter_unit` · `Fan_heater` · `Fire_damper` · `Fireplace` · `Fireplace_insert` · `Fireproofing` · `Firestop` · `First_law_of_thermodynamics` · `Flue` · [[Fluid_dynamics]] · `Forced-air` · `Forced-air_gas` · `François_Massieu` · `Free_cooling` · `Free_entropy` · `Freeze_stat` · `Freon` · `Fume_hood` · `Fundamental_thermodynamic_relation` · `Gas_detector` · `Gas_heater` · `Gas_laws` · `Gasoline_heater` · `General_relativity` · `Geometrical_optics` · `Geophysics` · `Georg_Ernst_Stahl` · `Gibbs_free_energy` · `Gilbert_N._Lewis` · `Glossary_of_HVAC_terms` · `Grand_potential` · `Grease_duct` · `Grille_(architecture)` · `Ground-coupled_heat_exchanger` · `Ground_source_heat_pump` · `HEPA` · `HVAC_control_system` · `Hampson–Linde_cycle` · `Heat` · `Heat_capacity` · `Heat_capacity_ratio` · `Heat_death_paradox` · `Heat_engine` · `Heat_exchanger` · `Heat_pipe` · `Heat_pump` · `Heat_pump_and_refrigeration_cycle` · `Heat_recovery_ventilation` · [[Heat_transfer]] · `Heating,_ventilation,_and_air_conditioning` · `Heating_film` · `Heating_system` · `Helmholtz_free_energy` · `Herbert_Callen` · `Hermann_von_Helmholtz` · `High-efficiency_hybrid_cycle` · `High-speed_photography` · `High_efficiency_glandless_circulating_pump` · `History_of_entropy` · `History_of_perpetual_motion_machines` · `History_of_physics` · `History_of_thermodynamics` · `Home_energy_monitor` · `Hot_air_engine` · `Humidifier` · `Humidistat` · `Humidity` · `Hybrid_heat` · `Hydronic_balancing` · `Hydronics` · `Hygroscopic_cycle` · `Ice_storage_air_conditioning` · `Ideal_gas` · `Ideal_gas_law` · `Indoor_air_quality` · [[Industrial_ecology]] · `Inexact_differential` · `Infiltration_(HVAC)` · `Infrared_heater` · `Infrared_thermometer` · `Institute_of_Refrigeration` · `Integrability_conditions_for_differential_systems` · `Intensive_and_extensive_properties` · `Internal_energy` · `Internal_pressure` · `International_Institute_of_Refrigeration` · `Introduction_to_entropy` · `Inverter_compressor` · `Irreversible_process` · `Isenthalpic_process` · `Isentropic_process` · `Isobaric_process` · `Isochoric_process` · [[Isolated_system]] · `Isothermal_flow` · `Isothermal_process` · `J._R._Partington` · `James_Clerk_Maxwell` · `James_Prescott_Joule` · `James_Watt` · `Johannes_Diderik_van_der_Waals` · `John_James_Waterston` · `John_Smeaton` · `Joseph_Black` · [[Josiah_Willard_Gibbs]] · `Journal_of_Mathematical_Physics` · `Julius_von_Mayer` · `Kalina_cycle` · `Kerosene_heater` · `Kerry_Emanuel` · `Kitchen_exhaust_cleaning` · `Kitchen_ventilation` · `Kleemenko_cycle` · `Lars_Onsager` · `Latent_heat` · `Laws_of_thermodynamics` · `Legendre_transformation` · `Lenoir_cycle` · `List_of_thermal_conductivities` · `List_of_thermodynamic_properties` · `LonWorks` · `Lord_Kelvin` · `Loschmidt's_paradox` · `Louver` · `Ludwig_Boltzmann` · `Magdeburg_hemispheres` · `Magnetic_Thermodynamic_Systems` · `Mass_flow_rate` · `Material_properties_(thermodynamics)` · [[Materials_science]] · `Mathematical_physics` · `Mathematische_Annalen` · `Matter` · `Max_Planck` · `Maximum_entropy_thermodynamics` · `Maxwell's_demon` · `Maxwell's_thermodynamic_surface` · `Maxwell_relations` · `Mechanical,_electrical,_and_plumbing` · [[Mechanical_engineering]] · `Mechanical_equivalent_of_heat` · `Mechanical_room` · `Mechanically_isolated_system` · `Mechanics` · `Medical_physics` · `Merle_Randall` · `Meteorology` · `Microgeneration_(energy)` · `Miller_cycle` · `Minimum_efficiency_reporting_value` · `Mixed-mode_ventilation` · `Mixed/dual_cycle` · `Modern_physics` · `Molecular_physics` · [[Newton's_laws_of_motion]] · `Nicolas_Léonard_Sadi_Carnot` · `Nobel_Prize_in_Physics` · `Noise_control` · `Non-equilibrium_thermodynamics` · `Nuclear_physics` · `Nucleation` · `Nuclide` · `Oil_heater` · `On_the_Equilibrium_of_Heterogeneous_Substances` · `Onsager_reciprocal_relations` · `OpenTherm` · [[Open_system_(systems_theory)]] · `Optics` · `Organic_Rankine_cycle` · `Otto_cycle` · `Otto_von_Guericke` · `Outgassing` · `Outline_of_astrophysics` · `Packaged_terminal_air_conditioner` · `Particle_number` · `Particle_physics` · `Passive_cooling` · `Passive_daytime_radiative_cooling` · `Passive_house` · `Passive_smoking` · `Passive_ventilation` · `Percy_Williams_Bridgman` · `Phase_(matter)` · [[Phase_transition]] · `Philosophy_of_physics` · `Physical_chemistry` · `Physical_oceanography` · `Physical_optics` · `Physical_quantity` · [[Physics]] · `Physics_education` · `Physics_education_research` · `Pierre_Duhem` · `Piobert's_law` · `Piston` · `Plenum_space` · `Polymer_chemistry` · `Polytropic_process` · `Power_(physics)` · `Pressure` · `Pressure_gain_combustion` · `Pressure–volume_diagram` · `Pressurisation_ductwork` · `Process_duct_work` · `Process_function` · `Programmable_communicating_thermostat` · `Programmable_thermostat` · `Pseudo_Stirling_cycle` · `Psychrometrics` · `Pulse_tube_refrigerator` · `Quantum_information_science` · [[Quantum_mechanics]] · `Quantum_statistical_mechanics` · `Quantum_thermodynamics` · `Quark` · `Quasistatic_process` · `Radiant_heating_and_cooling` · `Radiation` · `Radiator_(heating)` · `Radiator_reflector` · `Radon_mitigation` · `Raised_floor` · `Rankine_cycle` · `Rankine_scale` · `Real_gas` · `Recuperator` · `Reduced_properties` · `Reflections_on_the_Motive_Power_of_Fire` · `Refrigerant` · `Refrigerant_reclamation` · `Refrigeration` · `Regenerative_cooling` · `Register_(air_and_heating)` · `Relativistic_mechanics` · `Renewable_heat` · `Reversible_process_(thermodynamics)` · `Reversing_valve` · `Robert_Boyle` · `Robert_Hooke` · `Room_air_distribution` · `Room_temperature` · [[Rudolf_Clausius]] · `Run-around_coil` · `Sail_switch` · [[Science]] · `Scroll_compressor` · `Scuderi_cycle` · [[Second_law_of_thermodynamics]] · `Self-assembly` · [[Self-organization]] · `Sensible_heat` · `Sheet_Metal_and_Air_Conditioning_Contractors'_National_Association` · `Sick_building_syndrome` · `Siemens_cycle` · `Smart_thermostat` · `Smoke_canopy` · `Smoke_damper` · `Smoke_exhaust_ductwork` · `Solar-assisted_heat_pump` · `Solar_air_heat` · `Solar_chimney` · `Solar_combisystem` · `Solid-state_physics` · `Space_heater` · `Sparkling_wine` · `Special_relativity` · `Spontaneous_process` · `Stack_effect` · `Standard_temperature_and_pressure` · `State_function` · `State_of_matter` · `Statistical_mechanics` · `Statistics` · `Steady_state` · `Steam_digester` · `Steam_engine` · `Stirling_cycle` · `Stoddard_engine` · `Synergetics_(Haken)` · `Table_of_thermodynamic_equations` · `Temperature` · `Temperature–entropy_diagram` · `Testing,_adjusting,_balancing` · `Theorem_of_corresponding_states` · `Theoretical_physics` · `Thermal_comfort` · `Thermal_destratification` · `Thermal_efficiency` · `Thermal_expansion` · `Thermal_expansion_valve` · `Thermal_insulation` · `Thermal_mass` · `Thermal_wheel` · `Thermally_isolated_system` · `Thermodynamic_cycle` · `Thermodynamic_databases_for_pure_substances` · `Thermodynamic_diagrams` · `Thermodynamic_equations` · [[Thermodynamic_equilibrium]] · `Thermodynamic_free_energy` · `Thermodynamic_instruments` · `Thermodynamic_potential` · `Thermodynamic_process` · `Thermodynamic_state` · [[Thermodynamic_system]] · `Thermodynamic_temperature` · `Thermodynamicist` · `Thermoeconomics` · `Thermometer` · `Thermosiphon` · `Thermostat` · `Thermostatic_radiator_valve` · `Third_law_of_thermodynamics` · `Thomas_Newcomen` · `Thomas_Savery` · `Timeline_of_fundamental_physics_discoveries` · `Timeline_of_heat_engine_technology` · `Timeline_of_thermodynamics` · `Transcritical_cycle` · `Transport_phenomena` · `Trickle_vent` · `Trombe_wall` · `Tropical_cyclone` · `TurboSwing` · `Turning_vanes` · `Ultra-low_particulate_air` · `Underfloor_air_distribution` · `Underfloor_heating` · `Uniform_Mechanical_Code` · `University_of_Glasgow` · `Vacuum` · `Vacuum_pump` · `Vapor-compression_refrigeration` · `Vapor_barrier` · `Vapor_quality` · `Vapour_pressure_of_water` · `Variable_air_volume` · `Variable_refrigerant_flow` · `Ventilation_(architecture)` · `Virial_theorem` · `Vis_viva` · `Volatile_organic_compound` · `Volume_(thermodynamics)` · `Volumetric_flow_rate` · `Vuilleumier_cycle` · `Walther_Nernst` · `Warm_Spaces` · `Water_heat_recycling` · `Watt_steam_engine` · [[Wayback_Machine]] · `Whole-house_fan` · `Windcatcher` · `Wood-burning_stove` · `Work_(thermodynamics)` · `World_Refrigeration_Day` · `Zeroth_law_of_thermodynamics` · `Zone_valve`
## From the Real GENERATIVE library (beauty pass)
*Thermodynamics — image hotlinked from Wikimedia Commons (via the Real G.E.N.E.R.A.T.I.V.E. course library, Energy room). [Details & license](https://commons.wikimedia.org/wiki/File:Carnot_heat_engine_2.svg).*
> Thermodynamics deals with heat, work, and temperature, and their relation to energy, entropy, and the physical properties of matter and radiation. The behavior of these quantities is governed by the four laws of thermodynamics, which convey a quantitative description using measurable macroscopic physical quantities, but may be explained in terms of microscopic constituents by statistical mechanics. ([Wikipedia](https://en.wikipedia.org/wiki/Thermodynamics))
<!-- BEAUTY-PASS-MEDIA:END -->
> p5.js MicroSim stub · part of Process Engineering · [Wikipedia source](https://en.wikipedia.org/wiki/Thermodynamics)
> Relation: subfield of process engineering.
## Concept summary
Thermodynamics governs [[Energy|energy]], heat, work, and the equilibrium states of matter, supplying the property relations and limits behind every process operation.
## Build checklist
- [ ] Claim it: set `status: in-progress` + `lease` + `leased_at`
- [ ] Write the child page explaining the concept (tie it back to process engineering)
- [ ] Finalize parameter ranges and defaults
- [ ] Implement the p5.js sketch (drawing + control regions)
- [ ] Add caption + the learning objective on the page
- [ ] Set `status: done`
## p5.js sketch
```javascript
// MicroSim: Thermodynamics
let controls = {};
function setup() {
// createCanvas(...); create sliders for the parameters above.
}
function draw() {
// background(...); read controls; render phase diagram; respond live.
}
```
---
Back to Process Engineering · Wikipedia: [Thermodynamics](https://en.wikipedia.org/wiki/Thermodynamics)
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<!-- SEMIOTIC-PROFILE:START -->
## Semiotic profile
> *The semiotic universals this article invokes, machine-derived from the crossref — **unverified** (born so). Populated 2026-07-06 for the Systems room.*
**Universals (8):** 🟡 thermodynamics (14) · 🟢 energy (13) · 🟢 temperature heat (8) · 🟡 system (8) · 🟢 entropy (4) · 🟢 phase diagrams (3) · 🟢 pressure (2) · 🟢 equilibrium (1)
**Enter by sign:** Systems Semiotic Gateway · Alphabetum · Icon Registry · ← Systems Portal
<!-- SEMIOTIC-PROFILE:END -->
<!-- BEAUTY-PASS-MEDIA:START -->
## Wikipedia : Wikitube
**Strict pair:** [Wikipedia](https://en.wikipedia.org/wiki/Thermodynamics) : [Wikitube](https://en.wikitube.io/wiki/Thermodynamics)
## Previous hub tags
Tree parents: [[Cellular_automaton]] · [[Complex_system]] · [[Information_theory]] · [[Phase_space]] · [[Systems_theory]].
Legacy hubs: none.
---
*Sources: 2 legacy notes. Minted wave 1, 2026-07-30 (v1.6 order).*