Internal Energy
Internal energy, abbreviated as U, is the total of all energies associated with the motion of the molecules in the system.
Internal energy formula
\(\large{ U = \frac {3}{2} \; n \; R \; T_a }\) |
Where:
Units | English | Metric |
\(\large{ U }\) = internal energy | \(\large{Btu}\) | \(\large{J}\) |
\(\large{ T_a }\) = absolute temperature | \(\large{ R }\) | \(\large{ K }\) |
\(\large{ R }\) = ideal gas constant | \(\large{ \frac{lbf-ft}{lbmol-R} }\) | \(\large{ \frac{J}{kmol-K} }\) |
\(\large{ n }\) = number of moles | \(\large{dimensionless}\) |
Tags: Equations for Energy