Which of the following processes is endothermic?

Question

Quizplus · Accepted Answer

Photosynthesis is an endothermic process as it requires energy from sunlight to synthesize glucose from carbon dioxide and water. Option A is exothermic because the reaction between water and acid releases heat energy. Option B is also exothermic because rusting is a chemical reaction where iron reacts with oxygen in the presence of water, releasing heat energy. Option D is exothermic because electron affinity is defined as the energy released when an electron is added to an atom, and fluorine has very high electron affinity.

Which of the Following Processes Is Endothermic