Which of the following process is an example of exothermic reaction?
Correct answer: D. Respiration
- A. Evaporation
- B. Fusion
- C. Sublimation
- D. Respiration
Explanation
Exothermic processes generate heat, which raises the heat from the surrounding environment. Examples include ice melting, respiration, and cooking. Because heat is produced during the process of respiration, it is an exothermic process. The carbon dioxide in the food breaks down to create glucose during the process.
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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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