The enthalpy change of a reaction does not depend on:
Correct answer: B. Different intermediate reactions
- A. Initial and final enthalpy change of reaction
- B. Different intermediate reactions
- C. State of reactants and products
- D. Nature of reactants and products
Explanation
Option B is correct because enthalpy is a state function. So, enthalpy change does not depend upon the different steps involved in the chemical reaction. Hence, the enthalpy change of a reaction does not depend upon the different intermediate reactions.
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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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