Kaplan Nursing Entrance Exam Practice 2025 – Comprehensive Prep

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What is produced as a result of exothermic reactions?

Cold

Gas

Heat

In exothermic reactions, the defining characteristic is that they release energy into the surrounding environment, primarily in the form of heat. This release occurs as bonds are formed in the products of the reaction, which often results in a decrease in the potential energy of the system. When reacting substances release heat, the temperature of the surroundings increases, which is a key indication of an exothermic process.

While gases or light can be produced in some exothermic reactions, they are not universal outcomes of all such reactions. The fundamental trait that distinguishes exothermic reactions from others is the release of heat. This understanding is essential in various fields, including chemistry and thermodynamics, as it helps predict the behavior of substances during reactions and their applications in real-world scenarios, such as combustion or respiration.

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