Examples of State Functions in Thermodynamics

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SUMMARY

State functions in thermodynamics are properties that depend solely on the current state of a system, not on the path taken to reach that state. Key examples include internal energy, enthalpy (H), entropy (S), isochoric-isothermic potential (F), and isobaric-isothermic potential (Φ). Additionally, temperature, density, viscosity, and pressure are identified as intensive state functions. Understanding these concepts is essential for analyzing thermodynamic systems effectively.

PREREQUISITES
  • Understanding of thermodynamic principles
  • Familiarity with extensive and intensive properties
  • Knowledge of state functions in physics
  • Basic grasp of gas laws and behavior
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  • Research the role of enthalpy in thermodynamic processes
  • Explore the concept of entropy and its implications in thermodynamics
  • Learn about the differences between extensive and intensive properties
  • Investigate the applications of state functions in real-world thermodynamic systems
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ausdreamer
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I'm curious to find more examples (if they exist) of state functions in thermodynamics other than the internal energy of a gas.

Is the pressure, volume and temperature of a gas all state functions of the system?
 
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State function of a system is in thermodynamics any function that does not depend on the processes undergone by the system but only on the present state. In addition to internal energy are state functions enthalpy H, entropy S, isochoric-isothermic potential F, isobaric-isothermic potential \Phi, all of them extensive (mass-dependent, additive) functions; temperature, density, viscosity etc. (I guess also pressure) in a thermodynamic system are intensive (non-additive) state functions.
(quoted from B.Javorskij, A.Detlaf "Manuale di fisica", translated by myself from Italian)
 

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