An example of an endothermic reaction is:
Correct answer: A. Photosynthesis
- A. Photosynthesis
- B. Synthesis of NH3
- C. Nuclear fission
- D. Oxidation of sulfur gases
- E. Burning of fuel and coal
Explanation
Photosynthesis is an endothermic process. During photosynthesis, plants absorb light energy from the sun and convert it into chemical energy by synthesizing glucose from carbon dioxide and water.
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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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