State function and path function difference between them
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Answer:
A state function is a property whose value does not depend on the path taken to reach that specific value. In contrast, functions that depend on the path from two values are call path functions. Both path and state functions are often encountered in thermodynamics.
State Function:- Those state variables which depend only upon initial and final state of the system but doesn't depend upon the path or mechanism followed by the system are called state function.
Examples:- height, change in energy, Change in potential energy, Enthalpy change etc.
Path function:- Properties ot the system which depend upon the initial and final state of the system as well as the path or mechanism followed by the system is called path function.
Examples:- Work done, heat etc.