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QNEET-2017-Ph-981: NEET 2017 Physics - Class 11 NEET-2017-Ph-981 Solution: A gas mixture consists of 2 moles of \(O_2\) and 4 moles of Ar…
A gas mixture consists of 2 moles of and 4 moles of Ar at temperature T. Neglecting all vibrational modes the total internal energy of the system is 15 RT 9 RT 11 RT 4 RT
Multiple Choice Options
- A 15 RT
- B 9 RT
- C 11 RT
- D 4 RT
Step-by-Step Verified Solution
Internal energy of the system is given by
U = f 2 n R T
Degree of freedom
F diatomic = 5
f monoatomic = 3
and, number of moles n(O 2 ) = 2
n(Ar) = 4
U t o t a l = 5 2 ( 2 ) R T + 3 2 ( 4 ) R T = 11 R T