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AP EAMCET202420 May 2024Evening ShiftChemistryStates of MatterActual

What is the kinetic energy (in J mol ⁻¹ ) of one mole of an ideal gas (molar mass =0.1 ~kg ~mol ⁻¹ ) if its rms velocity is 4 10^2 ~ms ⁻¹ at T ( K ) ?

Options

  1. A2 10^5
  2. B8 10^4
  3. C8 10^2
  4. D8 10^3

Correct answer

D. 8 10^3

Step-by-step solution

K . E = 1 2 mv ^2= 1 2 (0.1) (4 10^2 )^2=8 10^3 ~J ~mol ⁻¹

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