Energy is absorbed?
Correct answer: D. Both Options A and B are correct
- A. In bond breaking
- B. In endothermic reactions
- C. In bond formation
- D. Both Options A and B are correct
Explanation
Breaking bonds requires adding energy, the opposite process of forming new bonds always releases energy. Bond breaking is an endothermic process while bond formation is an exothermic process.
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About Exothermic and Endothermic Reactions
Exothermic reactions release heat to the surroundings and have negative enthalpy change, while endothermic reactions absorb heat and have positive enthalpy change. The topic uses energy profiles to identify reactants, products and activation energy, and includes bond energy, enthalpy diagrams, calorimetry and Hess's law for calculating overall heat changes.
Practise Thermochemistry and Energetics of Chemical Reactions
728 free Thermochemistry and Energetics of Chemical Reactions MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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