In exothermic reactions, the heat content of the:
Correct answer: B. reactant is more than that of products
- A. product is more than that of reactants
- B. reactant is more than that of products
- C. reactants and products remains equal
- D. All are correct
Explanation
In an exothermic recation, heat energy is released when products are formed. ΔH of an exothermic recation is always negative. The equation given below shows for ΔH to be negative, the energy of products should be lesser than that of the reactants.ΔH = energy of products - energy of recatants
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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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