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AP EAMCET201824 Apr 2018Morning ShiftPhysicsKinetic Theory of GasesActual

The ratio of the speed of sound in a monatomic gas at 27^ C and rms speed of the molecules of the same gas at a temperature of 127^ C is

Options

  1. A1 : 2
  2. B5 : 12
  3. C3 : 4
  4. D13 : 17

Correct answer

B. 5 : 12

Step-by-step solution

Speed of sound in gas For monoatonic gas, r= 5 3 Also, T₁=300 ~K , T₂=400 ~K , aligned & Ratio, v c = T ₁ 3 T₂ = 5 / 3 300 3 400 & v c = 5 12 aligned

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