暗記メーカー

chapt 23A

chapt 23A

10問 • 9ヶ月前

問題一覧

1

In electronic absorption spectroscopy, the molar absorptivity (c) is related to the transition dipole moment. Which of the following statements is most accurate regarding an allowed electronic transition?

D. It exhibits a strong absorption peak due to a high transition dipol

2

Why is phosphorescence typically observed at longer timescales compared to fluorescence?

C) Phosphorescence involves intersystem crossing and spin-forbidden transitions

3

In the absorption spectrum of a diatomic molecule, a progression of bands is observed with decreasing intensity at higher energy. What does this imply about the relative positions of potential energy curves for the ground and excited electronic states?

C) The excited state minimum is shifted to longer bond lengths

4

Which of the following factors increases the intensity of Raman scattering for a particular vibrational mode?

C)Strong change in molecular polarizability during vibration

5

Which of the following spectroscopic techniques is most suitable for detecting chiral molecules and determining their absolute configuration?

C) Circular Dichroism (CD) spectroscopy

6

Which of the following transitions is spin- forbidden but can occur due to spin-orbit coupling in heavy atoms?

D. T1→SO

7

The fundamental vibrational frequency of a diatomic molecule is observed at 2200 c m ^ - 1 . If the anharmonicity constant xe is 0.01, what is the position of the first overtone (v = 0 -> 2) transition?

C) 4356cm ^ - 1

8

Which of the following normal modes of vibration in a nonlinear triatomic molecule like H₂O is IR active?

C) All modes with a change in dipole moment

9

Fine structure in atomic spectra arises from * which interaction? Why is fluorescence generally red-shifted compared to the corresponding absorption maximum (i.e., Stokes shift)?

C. Spin-orbit coupling within the atom

10

Why is fluorescence generally red-shifted compared to the corresponding absorption maximum (i.e., Stokes shift?

C) Vibrational relaxation and internal conversion occur before emission

biochem

biochem

velante · 99問 · 1年前

biochem

biochem

99問 • 1年前

inorg

inorg

velante · 100問 · 1年前

inorg

inorg

100問 • 1年前

phychem

phychem

velante · 99問 · 1年前

phychem

phychem

99問 • 1年前

GREAT BOOKS

GREAT BOOKS

velante · 56問 · 11ヶ月前

GREAT BOOKS

GREAT BOOKS

56問 • 11ヶ月前

BIOCHEMZ (bioenergetics)

BIOCHEMZ (bioenergetics)

velante · 12問 · 11ヶ月前

BIOCHEMZ (bioenergetics)

BIOCHEMZ (bioenergetics)

12問 • 11ヶ月前

BIOCHEMZ (cellular respi.)

BIOCHEMZ (cellular respi.)

velante · 28問 · 11ヶ月前

BIOCHEMZ (cellular respi.)

BIOCHEMZ (cellular respi.)

28問 • 11ヶ月前

BIOCHEMZ(glycolysis)

BIOCHEMZ(glycolysis)

velante · 28問 · 11ヶ月前

BIOCHEMZ(glycolysis)

BIOCHEMZ(glycolysis)

28問 • 11ヶ月前

BIOCHEMZ(fates of pyruv)

BIOCHEMZ(fates of pyruv)

velante · 33問 · 11ヶ月前

BIOCHEMZ(fates of pyruv)

BIOCHEMZ(fates of pyruv)

33問 • 11ヶ月前

BIOCHEMZ(krebs)

BIOCHEMZ(krebs)

velante · 32問 · 11ヶ月前

BIOCHEMZ(krebs)

BIOCHEMZ(krebs)

32問 • 11ヶ月前

BIOCHEMZ(ETC)

BIOCHEMZ(ETC)

velante · 47問 · 11ヶ月前

BIOCHEMZ(ETC)

BIOCHEMZ(ETC)

47問 • 11ヶ月前

PHYCHEM

PHYCHEM

velante · 54問 · 11ヶ月前

PHYCHEM

PHYCHEM

54問 • 11ヶ月前

PHYCHEM 2

PHYCHEM 2

velante · 57問 · 11ヶ月前

PHYCHEM 2

PHYCHEM 2

57問 • 11ヶ月前

FOOD CHEM food quali

FOOD CHEM food quali

velante · 60問 · 11ヶ月前

FOOD CHEM food quali

FOOD CHEM food quali

60問 • 11ヶ月前

FOOD CHEM water charact

FOOD CHEM water charact

velante · 61問 · 11ヶ月前

FOOD CHEM water charact

FOOD CHEM water charact

61問 • 11ヶ月前

FOOD CHEM starch

FOOD CHEM starch

velante · 46問 · 11ヶ月前

FOOD CHEM starch

FOOD CHEM starch

46問 • 11ヶ月前

FOOD CHEM starch 2

FOOD CHEM starch 2

velante · 18問 · 11ヶ月前

FOOD CHEM starch 2

FOOD CHEM starch 2

18問 • 11ヶ月前

FOOD CHEM pectins

FOOD CHEM pectins

velante · 42問 · 11ヶ月前

FOOD CHEM pectins

FOOD CHEM pectins

42問 • 11ヶ月前

ANACHEM m1

ANACHEM m1

velante · 23問 · 11ヶ月前

ANACHEM m1

ANACHEM m1

23問 • 11ヶ月前

ANACHEM m2

ANACHEM m2

velante · 6問 · 11ヶ月前

ANACHEM m2

ANACHEM m2

6問 • 11ヶ月前

ANACHEM m3

ANACHEM m3

velante · 21問 · 11ヶ月前

ANACHEM m3

ANACHEM m3

21問 • 11ヶ月前

branches of ethics

branches of ethics

velante · 8問 · 10ヶ月前

branches of ethics

branches of ethics

8問 • 10ヶ月前

branches of philosophy

branches of philosophy

velante · 13問 · 10ヶ月前

branches of philosophy

branches of philosophy

13問 • 10ヶ月前

morality

morality

velante · 33問 · 10ヶ月前

morality

morality

33問 • 10ヶ月前

greeks

greeks

velante · 13問 · 10ヶ月前

greeks

greeks

13問 • 10ヶ月前

chap 20

chap 20

velante · 10問 · 9ヶ月前

chap 20

chap 20

10問 • 9ヶ月前

chapt 21A

chapt 21A

velante · 10問 · 9ヶ月前

chapt 21A

chapt 21A

10問 • 9ヶ月前

chapt 21B

chapt 21B

velante · 10問 · 9ヶ月前

chapt 21B

chapt 21B

10問 • 9ヶ月前

chapt 22

chapt 22

velante · 10問 · 9ヶ月前

chapt 22

chapt 22

10問 • 9ヶ月前

chapt 23B

chapt 23B

velante · 10問 · 9ヶ月前

chapt 23B

chapt 23B

10問 • 9ヶ月前

chapt 24

chapt 24

velante · 10問 · 9ヶ月前

chapt 24

chapt 24

10問 • 9ヶ月前

identi

identi

velante · 10問 · 9ヶ月前

identi

identi

10問 • 9ヶ月前

application

application

velante · 5問 · 9ヶ月前

application

application

5問 • 9ヶ月前

matching

matching

velante · 10問 · 9ヶ月前

matching

matching

10問 • 9ヶ月前

multiple choices

multiple choices

velante · 20問 · 9ヶ月前

multiple choices

multiple choices

20問 • 9ヶ月前

問題一覧

1

In electronic absorption spectroscopy, the molar absorptivity (c) is related to the transition dipole moment. Which of the following statements is most accurate regarding an allowed electronic transition?

D. It exhibits a strong absorption peak due to a high transition dipol

2

Why is phosphorescence typically observed at longer timescales compared to fluorescence?

C) Phosphorescence involves intersystem crossing and spin-forbidden transitions

3

In the absorption spectrum of a diatomic molecule, a progression of bands is observed with decreasing intensity at higher energy. What does this imply about the relative positions of potential energy curves for the ground and excited electronic states?

C) The excited state minimum is shifted to longer bond lengths

4

Which of the following factors increases the intensity of Raman scattering for a particular vibrational mode?

C)Strong change in molecular polarizability during vibration

5

Which of the following spectroscopic techniques is most suitable for detecting chiral molecules and determining their absolute configuration?

C) Circular Dichroism (CD) spectroscopy

6

Which of the following transitions is spin- forbidden but can occur due to spin-orbit coupling in heavy atoms?

D. T1→SO

7

The fundamental vibrational frequency of a diatomic molecule is observed at 2200 c m ^ - 1 . If the anharmonicity constant xe is 0.01, what is the position of the first overtone (v = 0 -> 2) transition?

C) 4356cm ^ - 1

8

Which of the following normal modes of vibration in a nonlinear triatomic molecule like H₂O is IR active?

C) All modes with a change in dipole moment

9

Fine structure in atomic spectra arises from * which interaction? Why is fluorescence generally red-shifted compared to the corresponding absorption maximum (i.e., Stokes shift)?

C. Spin-orbit coupling within the atom

10

Why is fluorescence generally red-shifted compared to the corresponding absorption maximum (i.e., Stokes shift?

C) Vibrational relaxation and internal conversion occur before emission