At $300\,K$, the rms speed of oxygen molecules is $\sqrt{\frac{\alpha+5}{\alpha}}$ times to that of its average speed in the gas. Then, the value of $\alpha$ will be (used $\pi=\frac{22}{7}$ )
  • A$32$
  • B$28$
  • C$24$
  • D$27$
JEE MAIN 2023, Medium
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