The mathematical expression that helps in calculating diatomic gas internal energy (U) is 5/2 nKT.
What is internal energy?
Internal energy is given as the energy possessed by the thermodynamic system. The energy is expressed by the symbol U, and is equivalent to the heat gain or loss by the system.
The diatomic gas as the molecule that has been composed with the two atoms. The internal energy of the diatomic gas, U is given by:
U = 5/2 nKT
Where, U= internal energy, n = moles of gas, K = gas constant, and T= Temperature.
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