   # The species identified with each curve in the Maxwell-Boltzmann plot below are: (Assume all gases are at the same temperature.) (a) A = Xe, B = O 2 , C = Ne, and D = He (b) A = Xe, B = He. C = Ne, and D = O 2 (c) A = He, B = Ne, C = O 2 , and D = Xe (d) A = He, B = O 2 , C = Ne, and D = Xe Molecular speed (m/s) ### Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640

#### Solutions

Chapter
Section ### Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640
Chapter 10.6, Problem 2RC
Textbook Problem
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## The species identified with each curve in the Maxwell-Boltzmann plot below are: (Assume all gases are at the same temperature.) (a) A = Xe, B = O2, C = Ne, and D = He (b) A = Xe, B = He. C = Ne, and D = O2 (c) A = He, B = Ne, C = O2, and D = Xe (d) A = He, B = O2, C = Ne, and D = Xe Molecular speed (m/s)

Interpretation Introduction

Interpretation:

The correct option which identifying the elements given from Maxwell – Boltzmann plot should be determined.

Concept introduction:

• Root mean square speed (rms speed) of a substance can be calculated by using he formula,

u2=3RTM

Risgasconstant=8.3145J/K.molT=TemperatureinKM=Molarmass

• Maxwell Boltzmann plot is a graphical representation that reveals the correlation between the numbers of molecules with molecular speed. On X axis molecular speed and on Y-axis number of molecules were represented.

### Explanation of Solution

Given,

Maxwell- Boltzmann plot is,

rms speed of the molecule decreases with increase in its molar mass.   u2=3RTM

Therefore,

The molecule with higher molar mass will possess low molecular speed and the molecule with less molar mass possesses higher molecular speed.

In the given molecules Xe has higher molar mass and He has lower molar mass

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