Hydroxyl radical, ⚫OH, is the principal oxidizing agent in the troposphere, responsible for converting tropospheric hydrocarbons into aldehydes, and eventually carbon dioxide. The plot at below shows tropospheric ⚫OH concentration (molecules/m³, black line) from a suburban area near the Yangtze River delta in China.² OH / 10°cm³ 14 129 12 10 8 6 4 20 ייייייייייייייייייזיין 00 ☑ 06 12 18 Hour of Day

Hydroxyl radical, ⚫OH, is the principal oxidizing agent in the troposphere, responsible for converting tropospheric hydrocarbons into aldehydes, and eventually carbon dioxide. The plot at below shows tropospheric ⚫OH concentration (molecules/m³, black line) from a suburban area near the Yangtze River delta in China.² OH / 10°cm³ 14 129 12 10 8 6 4 20 ייייייייייייייייייזיין 00 ☑ 06 12 18 Hour of Day

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter8: Properties Of Gases

Section: Chapter Questions

Problem 85QRT

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Question

Explain the general change in •OH concentration over the course of a day. Why is it greatest at midday and lowest overnight? Please include one or more chemical reactions as part of your answer.

Hydroxyl radical, ⚫OH, is the principal oxidizing agent in the troposphere, responsible for
converting tropospheric hydrocarbons into aldehydes, and eventually carbon dioxide.
The plot at below shows tropospheric ⚫OH concentration (molecules/m³, black line)
from a suburban area near the Yangtze River delta in China.²
OH / 10°cm³
14
129
12
10
8 6 4 20
ייייייייייייייייייזיין
00
☑
06 12 18
Hour of Day

Definition Definition Transformation of a chemical species into another chemical species. A chemical reaction consists of breaking existing bonds and forming new ones by changing the position of electrons. These reactions are best explained using a chemical equation.

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