Bond energy is also called bond enthalpy that is the measure of enthalpy change at:
Correct answer: D. 298 K
- A. 273 K
- B. 212 F
- C. 273 C
- D. 298 K
Explanation
Bond enthalpy is the energy change at 25 oC or 298 K.
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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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