Which is not characteristic of a thermochemical equation:
Correct answer: D. It indicates whether a reaction would occur or not
- A. It indicates physical state of reactants and products
- B. It indicates whether the reaction is exothermic or endothermic
- C. It indicates allotropes of the reactants if present
- D. It indicates whether a reaction would occur or not
Explanation
The indication of whether a reaction would occur or not is not a characteristic of a thermochemical equation.Thermochemical equations only provide information about the heat exchange (enthalpy change) that occurs during a chemical reaction and do not directly determine whether the reaction will happen.
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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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