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Internal energy (U) is a state function

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  • What is a a state function?

  • A state function is independent of the paths followed to arrive at a particular value, such as energy, temperature, enthalpy, and entropy. Skip to content What’s Insight Menu Home Health Science Technology Energy About Us Search for: What is a State Function?

  • What is the relationship between enthalpy and internal energy?

  • Both enthalpy and the internal energy are often described as state functions. This means that they depend only on the state of the system, i.e., on its pressure, temperature, composition, and amount of substance, but not on its previous history.

  • What is the difference between state function and path function?

  • Path functions, on the other hand, are functions whose value relies on the path traveled to arrive between two states. A state function is independent of the paths followed to arrive at a particular value, such as energy, temperature, enthalpy, and entropy.

  • What are the factors that depend on the state of the system?

  • This means that they depend only on the state of the system, i.e., on its pressure, temperature, composition, and amount of substance, but not on its previous history.

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