For the mass spectrum of B r 2 , the molecular species give peaks at m/Z ratios of 158, 160, and 162 are needed to be determined. Concept introduction: Mass spectroscopy: It is a form of spectroscopic technique which is used for the elucidation of the molecules, depending upon the mass of the molecule. Parent ion peak: It is defined as the prominent peak in the mass spectrum of the molecule which represents the not fragmented molecular ion in the given molecule with greater m/z value. Base peak: It is the tallest peak in the spectrum. B r 2 ionize to form positive ions, B r 2 + a n d B r + . Elements present in B r 2 are 79 B r a n d 81 B r .

Question

30. We will derive the forms of the molecular partition functions for atoms and molecules shortly in class, but the partition function that describes the translational and rotational motion of a homonuclear diatomic molecule is given by Itrans (V,T) = = 2πmkBT h² V grot (T) 4π²IKBT h² Where h is Planck's constant and I is molecular moment of inertia. The overall partition function is qmolec Qtrans qrot. Find the energy, enthalpy, entropy, and Helmholtz free energy for the translational and rotational modes of 1 mole of oxygen molecules and 1 mole of iodine molecules at 50 K and at 300 K and with a volume of 1 m³. Here is some useful data: Moment of inertia: I2 I 7.46 x 10- 45 kg m² 2 O2 I 1.91 x 101 -46 kg m²

Answer 1

Question

Chapter 2, Problem 156GQ

(a)

Interpretation Introduction

Interpretation: For the mass spectrum of Br2, the molecular species give peaks at m/Z ratios of 158, 160, and 162 are needed to be determined.

Concept introduction:

Mass spectroscopy: It is a form of spectroscopic technique which is used for the elucidation of the molecules, depending upon the mass of the molecule.

Parent ion peak: It is defined as the prominent peak in the mass spectrum of the molecule which represents the not fragmented molecular ion in the given molecule with greater m/z value.

Base peak: It is the tallest peak in the spectrum.

Br2 ionize to form positive ions, Br2+and Br+.

Elements present in Br2 are 79Br and 81Br.

(b)

Interpretation Introduction

Interpretation:

For the mass spectrum of Br2, the relative intensities of the peaks has to be explained.

Concept introduction:

Mass spectroscopy: It is a form of spectroscopic technique which is used for the elucidation of the molecules, depending upon the mass of the molecule.

Parent ion peak: It is defined as the prominent peak in the mass spectrum of the molecule which represents the not fragmented molecular ion in the given molecule with greater m/z value.

Base peak: It is the tallest peak in the spectrum.

Br2 ionize to form positive ions, Br2+and Br+.

Elements present in Br2 are 79Br and 81Br.

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