Energy produced in nuclear fission?

The question asks about the primary form of energy produced directly in nuclear fission. The correct answer is Thermal energy. Nuclear fission is a process where the nucleus of an atom splits into two or more smaller nuclei, releasing a tremendous amount of energy, predominantly in the form of heat. This foundational concept is central to how nuclear power plants operate, where this thermal energy is used to heat water, produce steam, and drive turbines to generate electricity. Distractor Electrical energy is the end product after conversion from thermal energy, not the direct output of fission. Chemical energy is associated with chemical reactions, not nuclear processes. Gas is not a form of energy produced by fission. Thus, thermal energy is the direct and primary output.