Subject: Physical Chemistry · Chapter: Chemical Kinetics · Topic: Chemical Kinetics – General · Exam: CSIR-NET JUNE 2015 · Marks: 2 · Difficulty: Medium
The concentration of a reactant undergoing decomposition was $0.1,0.08$ and $0.067 \mathrm{mol} \mathrm{L}^{-1}$ after $1.0,2.0$ and 3.0 hr respectively. The order of the reaction is
(a)0
(b)1
(c)2
(d)3
Answer
Answer (as printed): C
Explanation
Increase of intensity of light used increases fluorescence as the fluorescence life-time increases. Molar absorptivity increases absorbance which further enhances fluorescence.