Which one of the following is a state function that describe both the internal energy and product of pressure and volume?
Correct answer: C. Enthalpy
- A. Entropy
- B. Heat
- C. Enthalpy
- D. Temperature
Explanation
Correct option is C. Enthalpy, a property of a thermodynamic system, is the sum of the system's internal energy and the product of its pressure and volume. Formula: H = E + PV H = enthalpy E = internal energy P = pressure V = volume
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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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