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BITSAT2023ChemistryChemical KineticsActual

For the decomposition of azomethane, CH ₃ ~N ₂ CH ₃( ~g ) CH ₃ CH ₃( ~g )+ N ₂( ~g ) a first order reaction, the variation in partial pressure with time at 600 ~K is given as The half life of the reaction is .

Options

  1. A2 10⁻⁵ s
  2. B2 10⁻⁴ ~s
  3. C4 10⁻⁴ s
  4. D2 10⁻³ ~s

Correct answer

A. 2 10⁻⁵ s

Step-by-step solution

For first order reaction aligned & k= 1 t ( P₀ P ) In ( P₀ P )=k t & ( P P₀ )=-k t aligned On comaring with straight line equation y = mx aligned & k = slope =3.465 10^4 & t _ 1 / 2 = 2 k = 0.693 3.465 10^4 =2 10⁻⁵ ~s aligned

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