Anything which depends upon initial and final state of a system is_______________?
Correct answer: C. state function
- A. environment
- B. surrounding
- C. state function
- D. enthalpy
Explanation
A state function is a property whose change depends only on the initial and final states, so the path of the process does not affect its value. Enthalpy is one example of a state function, but option c gives the general term and students may choose d by mistaking an example for the definition.
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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.
Practise Thermochemistry and Energetics of Chemical Reactions
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