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Internal energy is the sum of the randomly distributed microscopic potential energy and kinetic energy of the molecules that make up the system.

The first law of thermodynamics states that: "The internal energy of a system is a function of its state. Any increase in the internal energy of a system is equal to the sum of the heat supplied to the system and the work done on the system."

The first law of thermodynamics is a direct consequence of the principle of conservation of energy.

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Wiki User

13y ago
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8y ago

That sounds like you are referring to "internal energy" which is denoted by the symbol U.

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Wiki User

6y ago

The letter W is used to represent work.

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11y ago

triangle

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King Dedede

Lvl 4
3y ago

ΔU

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Q: Which choice best explains what internal energy is as it relates to the first law of thermodynamics?
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