Energy change is governed by:
Correct answer: C. Enthaply
- A. Heat
- B. Work
- C. Enthaply
- D. None of these
Explanation
Enthalpy (H) is a thermodynamic property that specifically represents the heat content of a system and it includes both the internal energy of the system and the energy associated with the pressure-volume work done by or on the system. In many thermodynamic processes, changes in enthalpy (ΔH) are used to quantify the energy changes.
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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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