Verified Solution • 2025–26 Session moderate

QJEEM22Ph7c50: JEE Main 2022 Physics - Class 11 JEEM22Ph7c50 Solution: A flask contains argon and oxygen in the ratio of 3 : 2 in mass …

A flask contains argon and oxygen in the ratio of 3 : 2 in mass and the mixture is kept at 27∘C. The ratio of their average kinetic energy per molecule respectively will be :

Multiple Choice Options

  • A 3:02
  • B 9:04
  • C 2:03
  • D 1:01

Step-by-Step Verified Solution

KEavg=32kT (At lower temperature)

As temperature is same for both the gases.

⇒ Both gases will have same average kinetic energy.

⇒(KEavg)arg⁡on(KEavg)oxygen=11

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