What happens to energy during an endothermic reaction?

What happens to energy during an endothermic reaction?

• A. Energy is released into the surroundings
• B. Energy is stored in reactants
• C. Energy is unchanged
• D. Energy is created from nothing

Answer: (B)

During an endothermic reaction, energy is absorbed from the surroundings, which leads to a decrease in the temperature of the environment where the reaction occurs. This absorbed energy is stored within the reactants, allowing them to convert into products. In essence, the reactants gain energy, which they utilize to break bonds and form new ones during the reaction process. This is why the correct choice indicates that energy is stored in the reactants, as it reflects the fundamental nature of endothermic reactions where the system takes in heat or energy from its surroundings.

During an endothermic reaction, energy is absorbed from the surroundings, which leads to a decrease in the temperature of the environment where the reaction occurs. This absorbed energy is stored within the reactants, allowing them to convert into products. In essence, the reactants gain energy, which they utilize to break bonds and form new ones during the reaction process. This is why the correct choice indicates that energy is stored in the reactants, as it reflects the fundamental nature of endothermic reactions where the system takes in heat or energy from its surroundings.