Principles of Instrumental Analysis
Principles of Instrumental Analysis
7th Edition
ISBN: 9781305577213
Author: Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher: Cengage Learning
Question
Book Icon
Chapter 18, Problem 18.5QAP
Interpretation Introduction

(a)

Interpretation:

The ratio and comparison of intensities of the anti-Stokes and Stokes line for CCl4 at frequency shift of 218cm1.

Concept introduction:

The intensity of stocks lines is directly proportional to the population of higher state and intensity of anti-stocks is directly proportional to the population of lower state. The change in energy of Raman lines is directly proportional to the frequency shift.

Interpretation Introduction

(b)

Interpretation:

The ratio and comparison of intensities of the anti-Stokes and Stokes line for CCl4 at frequency shift of 459cm1.

Concept introduction:

The intensity of stocks lines is directly proportional to the population of higher state and intensity of anti-stocks is directly proportional to the population of lower state. The change in energy of Raman lines is directly proportional to the frequency shift.

Interpretation Introduction

(b)

Interpretation:

The ratio and comparison of intensities of the anti-Stokes and Stokes line for CCl4 at frequency shift of 790cm1.

Concept introduction:

The intensity of stocks lines is directly proportional to the population of higher state and intensity of anti-stocks is directly proportional to the population of lower state. The change in energy of Raman lines is directly proportional to the frequency shift.

Blurred answer
Students have asked these similar questions
The vibrational temperature of a molecule prepared in a supersonic jet can be estimated from the observed popula- tions of its vibrational levels, assuming a Boltzmann distri- bution. The vibrational frequency of HgBr is 5.58 × 1012 s-1, and the ratio of the number of molecules in the n = 1 state to the number in the n = 0 state is 0.127. Estimate the vibra- tional temperature under these conditions.
b. The energy difference between consecutive vibrational states is 1.0 x 1020 J for a molecule. (i) Calculate the population ratio, n4/n¡, for this system at 298 K and discuss the significance of this ratio in terms of the distribution of molecules in the higher vibrational energy states. (ii) Estimate the vibrational partition function at 298 K. (iii) Estimate the fundamental vibration wave number for this molecule. h = 6.626 x 10-3ª J s k= 1.38 x 1023 J K' c = 2.998 x 10® m s''
(c) When a gas is expanded very rapidly, its temperature can fall to a few degrees Kelvin. At these low temperatures, unusual molecules like ArHCl (Argon weakly bonded to HCl) can form on mixing. For the isotopic species Ar H$CI, the following rotational transitions were observed: J (1 → 2): 6714.44 MHz J (2 → 3): 10068.90 MHz Assume the molecule can be treated as a linear diatomic molecule (ArCl). (i) Calculate the rotational constant (B) and centrifugal distortion (D) constant for this molecule.
Knowledge Booster
Background pattern image
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Chemistry
Chemistry
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
Text book image
Chemistry
Chemistry
ISBN:9781259911156
Author:Raymond Chang Dr., Jason Overby Professor
Publisher:McGraw-Hill Education
Text book image
Principles of Instrumental Analysis
Chemistry
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning
Text book image
Organic Chemistry
Chemistry
ISBN:9780078021558
Author:Janice Gorzynski Smith Dr.
Publisher:McGraw-Hill Education
Text book image
Chemistry: Principles and Reactions
Chemistry
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:Cengage Learning
Text book image
Elementary Principles of Chemical Processes, Bind...
Chemistry
ISBN:9781118431221
Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:WILEY