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MHT CET202210 Aug 2022Morning ShiftChemistryChemical KineticsActual

What is value of rate constant of a first order reaction if slope of graph between ₁₀ [ A ]₀ [ ~A ]_ t (y axis) and time (x axis) is 1 10⁻³ ?

Options

  1. A4.34 10⁻³
  2. B6.93 10⁻³
  3. C2.303 10⁻³
  4. D5.12 10⁻³

Correct answer

C. 2.303 10⁻³

Step-by-step solution

aligned & In [A_t ]= In [A_O ]-K t & In [A₀ ] [A_t ] =K t & ₁₀ [A₁ ] [A_t ] = K 2.303 . t & = K 2.303 =1 10⁻³ & K=2.303 10⁻³ aligned

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