Verified Solution • 2025–26 Session moderate

QAIPMT-2009-Ch-2109: NEET 2009 Chemistry - Class 12 AIPMT-2009-Ch-2109 Solution: Half-life period of a first order reaction is 1386 seconds. The …

Half-life period of a first order reaction is 1386 seconds. The specific rate constant of the reaction is

Multiple Choice Options

  • A 0.5×10−2 s−10.5\times10^{-2}\ \text{s}^{-1}
  • B 0.5×10−3 s−10.5\times10^{-3}\ \text{s}^{-1}
  • C 5.0×10−2 s−15.0\times10^{-2}\ \text{s}^{-1}
  • D 5.0×10−3 s−15.0\times10^{-3}\ \text{s}^{-1}

Step-by-Step Verified Solution

Specific rate constant k = 0.693 t 1 / 2 = 0.693 1386 = 0.5 _ 10 -3 sec -1

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