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The molecular mass of a gas having r.m.s. speed four times as that of another gas having molecular mass 32 is

Options

  1. A2
  2. B4
  3. C26
  4. D32

Correct answer

A. 2

Step-by-step solution

array ll & v _ rms 1 M & ( v _ rms )₂ ( v _ rms )₁ = M ₁ M ₂ & Given that ( v _ rms )₂=4 ( v _ rms )₁ & 32 M ₂ =4 & 32 M ₂ =16 & M ₂=2 array

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