Question:
A gas mixture consists of 2.0 moles of oxygen and 4.0 moles of neon a temperature T. Neglecting all vibrational modes, calculate the total internal energy of the system. (Oxygen has two rotational modes.)
Solution:
Degree of freedom of oxygen = 5
Total internal energy of 2-mole oxygen = 5RT
Total internal energy of 4 mole of Ne = 6RT
The total internal energy of the system = 11 RT
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