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AP EAMCET202421 May 2024Evening ShiftChemistryChemical KineticsActual

A P is a zero order reaction. At 298 K the rate constant of the reaction is 1 10⁻³ ~mol ⁻¹ ~s ⁻¹ . Initial concentration of ' A ' is 0.1 ~mol ~L ⁻¹ . What is the concentration of ' A ' after 10 sec ?

Options

  1. A0.09 ~mol ~L ⁻¹
  2. B0.099 ~mol ~L ⁻¹
  3. C0.087 ~mol ~L ⁻¹
  4. D0.011 ~mol ~L ⁻¹

Correct answer

A. 0.09 ~mol ~L ⁻¹

Step-by-step solution

Given, aligned & K =10⁻³ ~mol ~L ⁻¹ ~s ⁻¹ & [ ~A _ o ]=0.1 ~mol ~L ⁻¹ & t =10 ~s aligned for zero order, aligned & [ A _ + ]= [ A ₀ ]- kt & [ ~A _ + ]=0.1-10⁻³ 10 & =0.1-10⁻² & =0.09 ~mol ~L ⁻¹ aligned

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