A gas mixture consists of 2 moles of oxygen and 4 moles of argon at temperature T . Neglecting all vibrational modes, the total internal energy of the system is

Question

A gas mixture consists of 2 moles of oxygen and 4 moles of argon at temperature T . Neglecting all vibrational modes, the total internal energy of the system is, 4 R T, 15 R T, 9 R T, 11 R T

MARKS App · Accepted Answer

Internal energy of a gas is given by, U = f 2 n R T Total internal energy of the system is, U = U O 2 + U A r U = 5 2 2 R T + 3 2 4 R T U = 11 R T

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