∆H and ∆E have same values for the reaction in_?
Correct answer: C. Liquids, solids and solution
- A. Solid phase
- B. Gases phase
- C. Liquids, solids and solution
- D. None of these
Explanation
In many cases involving reactions in liquids, solids, or solutions, the differences between ΔH and ΔE are relatively small. These phases also have low compressibility, and any work done against pressure is often negligible compared to the heat exchanged.
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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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