Question

what is the characters of internal energy

Answer 1

Internal energy

Common symbols

USI unitJIn SI base unitsm2*kg/s2

Derivations from
other quantities

{\displaystyle U=\sum _{i}E_{i}\!}


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Answer 2

In the terms of thermodynamics, internal energy is the energy which is contained by the system itself.This energy also includes the the kinetic motion energy of that system.

Characters of the internal energy:

1) internal energy is an extensive property

2) this internal energy is path independent

3)SI unit of the internal energy is Joules

And many more..