NEET2009ChemistryChemical KineticsActual
Half-life period of a first-order reaction is 1386 seconds. The specific rate constant of the reaction is :
Options
- A5.0 10⁻² ~s ⁻¹
- B5.0 10⁻³ ~s ⁻¹
- C0.5 10⁻² ~s ⁻¹
- D0.5 10⁻³ ~s ⁻¹
Correct answer
D. 0.5 10⁻³ ~s ⁻¹
Step-by-step solution
K = 0.693 t _ 1 / 2 = 0.693 1386 =0.5 10⁻³ ~S ⁻¹