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AP EAMCET202317 May 2023Morning ShiftPhysicsKinetic Theory of GasesActual

If the rms speeds of helium and oxygen are equal, then the ratio of the temperatures of helium and oxygen is

Options

  1. A1: 8
  2. B2: 1
  3. C1: 4
  4. D4: 1

Correct answer

A. 1: 8

Step-by-step solution

rms speed is given by aligned & V _ rms = 3 RT M & M _ He =4 M _ O ₂ =32 & 3 RT _ He M _ He = 3 RT _ O ₂ M _ O ₂ & T _ He T _ O ₂ = M _ He M _ O ₂ = 4 3^2 = 1 8 aligned

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