An energy diagram is shown below: What is the activation energy of reverse reaction?
Correct answer: C. x + y
- A. x
- B. x - y
- C. x + y
- D. y
Explanation
Energy difference between products and reactants is x and activation energy of reactants is y so in reverse reaction where products will act as reactants the activation energy would be x+y.
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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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