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AP EAMCET202120 Aug 2021Evening ShiftPhysicsKinetic Theory of GasesActual

When the temperature of an ideal gas is increased from 27 ° C to 127 ° C , calculate the percentage increase in its v r m s .

Options

  1. A37 %
  2. B11 %
  3. C33 %
  4. D15 . 5 %

Correct answer

D. 15 . 5 %

Step-by-step solution

R.M.S velocity, v r . m . s = 3 R T M v r . m . s ∝ T Percentage change, ⇒ ∆ v r . m . s v r . m . s = T 2 - T 1 T 1 ⇒ ∆ v r . m . s v r . m . s = 400 - 300 300 = 0 . 155 = 15 . 5 %

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