   # What is the rms speed of chlorine molecules at 35.0 ℃? (a) 10.4 m/s (b) 32.7 m/s (c) 111 m/s (d) 329 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 1RC
Textbook Problem
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## What is the rms speed of chlorine molecules at 35.0 ℃? (a) 10.4 m/s (b) 32.7 m/s (c) 111 m/s (d) 329 m/s

Interpretation Introduction

Interpretation:

The root means square (rms) speed of chlorine molecule 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

### Explanation of Solution

Given,

The temperature is 350C=308K

Molar mass of chlorine molecule is 70.906g/mol

Substituting these value in the equation,

u2=3RTM

Then,

u2=3× 8.3145J/K.mol×308K70

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