Subject: Physical Chemistry · Chapter: Chemical Kinetics · Topic: Arrhenius Activation · Exam: NET DEC 2013 · Marks: 2 · Difficulty: Medium
A first order gaseous reaction is $25 \%$ complete in 30 minutes at 227 oC and in 10 minutes at $237^{\circ} \mathrm{C}$. The activation energy of the reaction is closest to $\left(\mathrm{R}=2 \mathrm{cal} \mathrm{K}^{-1} \mathrm{mol}^{-1}\right)$
(a)$27 \mathrm{kcal} \mathrm{mol}^{-1}$
(b)$110 \mathrm{kcal} \mathrm{mol}^{-1}$
(c)$55 \mathrm{kcal} \mathrm{mol}^{-1}$
(d)$5.5 \mathrm{kcal} \mathrm{mol}^{-1}$
Answer
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