Most of thermodynamic parameters are_________________?
Correct answer: D. state functions
- A. system
- B. surrounding
- C. phase
- D. state functions
Explanation
Thermodynamic parameters such as pressure, temperature, volume, internal energy and enthalpy are generally state functions, with values fixed by the state of the system. Students may choose system because these parameters describe a system, but system is the object being studied, not a mathematical type of property.
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About System, Surroundings and State Functions
A system is the part of the universe under study, while everything outside it is the surroundings; the boundary separates them. State functions such as pressure, temperature, volume, internal energy and enthalpy depend only on the state, unlike heat and work, which depend on the path taken.
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