Which type of energy refers to the sum of potential and kinetic energies in the particles of a substance?
Omotion
stored
O internal
O heat
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Answer :

Final answer:

Internal energy in a substance includes both kinetic and potential energies within its particles.


Explanation:

Internal energy in a substance consists of both kinetic and potential energies in the particles forming the system. When atoms or molecules move, vibrate, or rotate, they possess kinetic energy, while potential energy is linked to the static constituents like bond energy. The sum of these energies within a substance is termed internal energy (U).


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