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Question
What are state and path functions? Give two examples.
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Solution
- The variables like P. V, T and ‘n’ that are used to describe the state of the system are called state functions. e.g., pressure, volume, temperature, internal energy, enthalpy and free energy.
- A path function is a thermodynamic property of the system whose value depends on the path or manner by which the system goes from its initial to final state. e.g., work (w) and heat (q).
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