Which one of the following is not an example of state function?
Correct answer: D. Heat (q)
- A. Temperature (T)
- B. Volume (V)
- C. Enthalpy (E)
- D. Heat (q)
Explanation
Heat is NOT a state function. Heat is the transfer of energy between a system and its surroundings due to a temperature difference. It depends on the process or path taken and is not solely determined by the initial and final states. The amount of heat exchanged can vary depending on the specific conditions and the path taken.
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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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