Calculations based on Internal Energy

Internal Energy

The internal energy is the total of all the energies associated with the motion of the molecules in a system. Microscopic forms of energy include those due to the rotation, vibration, translation, and interactions among the molecules of a substance. The more usual formula is given for an ideal gas.

Internal energy = 3/2 (number of moles) * (ideal gas constant) * (Temperature)

The equation is:

E= 3/2 n R T

Where:

E: Internal Energy

R: Ideal gas constant. (8.314 kg*m2/s2*mol*K)

T: Absolute Temperature in Kelvin.

n: moles

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