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MHT CET Physics question

PhysicsKinetic Theory of GasesMHT CET

A gas mixture consists of 2 moles of oxygen gas and 4 moles of helium gas at a temperature 'T'. Neglecting all vibrational modes, the total internal energy of the system will be (R = Universal gas constant) [MHT-CET 2013]

Answer: (C)

Solution

U=2\times\frac{5}{2}RT+4\times\frac{3}{2}RT=5RT+6RT=11RT; 25RT, 4RT and

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Question ID VK-063908