Which of the following term is state function?
Correct answer: D. Enthalpy
- A. Freezing
- B. Decomposition
- C. Sublimation
- D. Enthalpy
Explanation
Enthalpy is a state function. State functions are properties that depend only on the current state of a system and are independent of the path taken to reach that state. Enthalpy is a measure of the heat energy of a system and is expressed as ∆H.
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About Thermochemistry and Energetics of Chemical Reactions
Thermochemistry measures energy changes in chemical reactions and distinguishes exothermic from endothermic processes. Work covers systems, surroundings and state functions, internal energy, the first law of thermodynamics, enthalpy and Hess's law, including the sign conventions used when heat enters or leaves a system.
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