The energy (a) in EV and (b) in joules of the third energy level (n= 3) of the hydrogen atom.
-1.51 eV
-2.42 x 10^-19 J
In physics, energy is a quantitative property that is transferred to a body or physical system and can be perceived in the performance of work or in the form of heat and light. Energy is Conserved - The law of conservation of energy states that energy can be transformed into form, but cannot be created or destroyed.
Energy, in physics the ability to do work. It can exist in electrical, kinetic, thermal, electrical, chemical, nuclear, or various other forms. There is also heat and work. H. Energy in transfer from one object to another. Ability or power to do work. B. The ability to move an object (of a certain mass) by applying a force. Energy exists in many forms, such as electrical, mechanical, chemical, thermal, and nuclear, and can be transformed from one form to another.
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