State function the macroscopic property of system depends upon________________?
Correct answer: D. initial and final state
- A. path of reaction
- B. initial state
- C. final state
- D. initial and final state
Explanation
A state function has a value determined only by the initial and final states, not by the route taken between them. Students may choose only the initial or final state, but a change such as ΔH requires comparison of both states.
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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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