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3. Chemical kinetics — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistry3. Chemical kinetics1 Mark
MCQ
Mathematical repressentation for $t_{1/4}$ life for first order reaction is given by
  • A
    $t_{1/4} = [(2.303)/(K)]\, log\, 4$
  • B
    $t_{1/4} = [(2.303)/(K)]\, log\, 3$
  • ✓
    $t_{1/4} = [(2.303)/(K)]\, log\, (4/3)$
  • D
    $t_{1/4} = [(2.303)/(K)]\, log\, (3/4)$
✓

Answer

Correct option: C.
$t_{1/4} = [(2.303)/(K)]\, log\, (4/3)$
c
$k{t_{1/4}} = 2.3031\,{\log _{10}}\,\frac{a}{{3a/4}}$

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