PDF-Oxidizing Power of the Troposphere

1 Chemical Atmospheric Composition in percentVENUS EARTH MARS 013 0007 093 16 0105 2 003 Chemistry of the Natural Atmosphere P Warneck chap 12 1987 2 Due to abundance of O2 Earth. 87 PbO s SO 2 aq 4H aq 2e PbSO s 2H O 169 MnO aq 8H aq 5e Mn 2 aq 4H O 151 Au 3 aq 3e Aus 150 ClO aq 8H aq 8e Cl aq 4H O 139 Cl g 2e 2Cl aq 136 Cr 2 aq 14H aq 6e 2Cr 3 aq 7H O 133 2HNO aq 4H aq 4e N Og 3H O 130 O g 4H aq 4e Lesson Objectives. Describe how the temperature of the atmosphere changes with altitude.. Outline the properties of the troposphere.. Explain the role of the ozone layer in the stratosphere.. Describe conditions in the mesosphere.. The ocean/layer of gas that surrounds the Earth. It is composed of 78% Nitrogen and 21% Oxygen. The other 1 % is a mixture of other gasses. We depend on this balance of gas for our survival. When it is out of balance, we have problems.. Liliana Quiza, Isabelle Lalonde, Philippe Constant . INRS-Institut . Armand Frappier, . Laval (Québec).. Acknowledgements. Fonds de recherche du Québec - Nature et . technologies . (FQRNT) for funding. Corrosion. Corrosion-An . oxidization. of a metal, and the oxide flaking off.. Oxidized metal is commonly called rust. Most commonly oxygen will oxidize a metal.. Either by . [Metal] + O. 2. . → . and the Impact on Living Things. Earth’s Atmosphere. The gases that surround Earth (and other planets) make up the atmosphere. These gases are like an envelope that protects us from the radiation that is caused by the sun’s . Acknowledgement. G. . . Ancellet. , O. R. . Cooper, J. . Cuesta, G. . Dufour. , F. . Ebojie. , G. Huang, S. S. . Kulawik. , B. Latter, T. Leblanc, J. Liu, X. Liu, J. . Neu. , H. . Petetin. , I. . Petropavlovskikh. MESOSPHERE. THERMOSPHERE. STRATOSPHERE. TROPOSPHERE. 12 km. I am the layer of the atmosphere second closest to the ground. MESOSPHERE. THERMOSPHERE. TROPOSPHERE. STRATOSPHERE. 12 km. 50 km. I am the layer of the atmosphere third closest to the ground. Spontaneous reactions . Spontaneous reactions occurs with NO INPUT OF ENERGY. Spontaneous reactions allow for the transfer of electrons from an oxidizing agent to a reducing agent . Testing spontaneity. atm. means smoke or vapor. The Atmosphere. Here are the layers of the atmosphere. The Atmosphere covers the whole earth!. Exosphere. – . (exo) meaning outer or beyond, so this is the outermost layer of our . A layer of the atmosphere that is closest to the Earth’s surface. Almost all weather occurs here. Temperature decreases as altitude increases. STRATOSPHERE. Layer above the troposphere. Extends from 18-50 km. Redox. Potential. pE. = -log free electrons. When corrected to pH 7 (H. . = OH. -. ), called E. h. When E. h . positive – oxidizing environment . When E. h . negative – reducing environment . Mn. (III/IV). These are to be contrasted with the potentially rapid oxidations that occur with . photochemically. produced oxidants such as H. 2. O. 2. , O. 3. , the free radicals such as hydroxyl (-OH) and . Use NOAA Unique Combined Atmospheric Processing System (NUCAPS) Satellite Soundings to observe the tropical cyclone (TC) diurnal cycle. infrared (IR) and microwave (MW) soundings. Three case studies: Hurricanes Dorian (2019), Florence (2018), Irma (2017).