Chemistry / Chem 0675 · Atom · ~20 seconds
State Function
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State
A state function is a property whose value depends only on a system's current state, not the path taken to reach it.
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A hiker's elevation on a mountain is identical whether the trail taken was direct or roundabout, unlike distance walked.
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Heat and work each depend on the path taken, so neither alone is a state function, unlike their combined internal-energy change.