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QJEEM19Phb1c2: JEE Main 2019 Physics - Class 11 JEEM19Phb1c2 Solution: A gas mixture consists of 3 moles of oxygen and 5 moles of…

A gas mixture consists of 3 moles of oxygen and 5 moles of argon at temperature T. considering only translational and rotational modes, the total internal energy of the system is :

Multiple Choice Options

  • A 12 RT
  • B 20 RT
  • C 4 RT
  • D 15 RT

Step-by-Step Verified Solution

U =f12n1RT+f22n2RT

=52(3RT)+32×5RT

U =15RT

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