Multiple Choice
For a particular substituted stilbene dendrimer the quantum yield for fluorescence following electronic excitation is 0.14, with the observed lifetime of the excited state 4.6 ns. Calculate the rate constant for fluorescence.
A) 33 103 s-1
B) 30 106 s-1
C) 1.6 109 s-1
D) 6.4 10-10 s-1
Correct Answer:

Verified
Correct Answer:
Verified
Q1: When monochromatic radiation of energy 21.22 eV
Q2: For chlorine monofluoride, ClF, the harmonic vibrational
Q3: Calculate the angular momentum of a molecule
Q4: The lifetime of an excited electronic state
Q6: The observed lifetime of an excited electronic
Q7: The harmonic vibrational wavenumber of the <sup>32</sup>S<sup>16</sup>O
Q8: The rotational constant of a hydrogen fluoride,
Q9: What is the degeneracy of the rotational
Q10: In the photoelectron spectrum of carbon disulfide,
Q11: The bond length in a nitric oxide