PPT-Air Mixture of gases and particulates that are found in the atmosphere

Two major gases are Nitrogen 70 and Oxygen 20 Most other gases are found in varying amounts Carbon dioxide is found in increasing amounts because of human activities CO 2 raises the temperatures in the atmosphere because of a . Human activities affect the atmosphere.. The Ozone Layer: A Review. 90% of all ozone is in the stratosphere. 10% of all ozone is in the troposphere. Ozone is extremely important because it is the only gas that absorbs UV radiation from the sun and protects the Earth from its damaging effects.. 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 . Primordial (or non-radiogenic) noble gases (. 3. He, . 22. Ne, . 36. Ar, . 130. Xe): isotopes not produced on Earth through radioactive decay . Radiogenic noble gases: produced from radioactive decay (. Aziz AlSa’ad-Nasser Alabduljaleel-Abdulkareem AbuTaleb-Aziz AlOthman . 1.3 Vocabulary . Ultraviolet radiation:. rays of light that cannot be seen and that are a little bit shorter than the rays of violet light. What is the atmosphere?. Definition: The envelope of gases surrounding planet Earth.. Why do we need the atmosphere?. The atmosphere provides protection for the planet from objects in space and contains gasses that help sustain life.. in this class.. You will be compensated $$$ for your note-taking.. To . apply to be a note-taker please visit. http://sds.umbc.edu/becoming-a-note-taker/. Composition and Structure of the Atmosphere. Partial Pressure, . Gases in Chemical . Reactions . & KMT. Partial Pressures of Gases in Mixtures. Each gas, in a mixture of gases. , exerts . a specific amount of pressure. This pressure can be calculated using the ideal gas law:. 7.5 Composition and Structure of the Atmosphere What is the composition of Earth’s Atmosphere? SC.6.E.7.9, LA.6.2.2.3 Composition of Earth’s Atmosphere The atmosphere is the protective covering of Earth. It keeps Earth warm and protects it from Proportions of gases in the atmosphere. Composition and evolution of the atmosphere. Combustion of fuels. Source of atmospheric pollutants.. Most fuels may also contain some . sulfur. .. Gases from burning fuels. 2. CHAPTER OUTLINE. Properties of Gases. Pressure & Its Measurement. The Gas Laws. Vapor Pressure & Boiling Point. Combined Gas Law. Avogadro’s Law. STP & Molar Volume. Ideal Gas Law. Partial Pressures. 3. Its structure, composition and dynamics. In last week’s lecture, we focussed on how weather is generated.. The key ingredients are energy and gradients.. Last Week’s Lecture. Incoming energy from the Sun is balanced with outgoing radiative cooling of the Earth, resulting in an equilibrium temperature of about 15 °C. . 3. He, . 22. Ne, . 36. Ar, . 130. Xe): isotopes not produced on Earth through radioactive decay . Radiogenic noble gases: produced from radioactive decay (. 4. He, . 40. Ar, . 136. Xe) or through nuclear reactions (. c.. 70 km (. c.. 43 mi), characterized by a relatively constant composition of its component gases. Air above a region of surface high pressure is more dense than air above . a region of surface low pressure (at the same temperature). . A gas mixture with a total pressure of 745 mmHg contains each of the following gases at the indicated partial pressures. CO. 2. – 125 mmHg. Ar. – 214 mmHg. O. 2. – 187 mmHg. The mixture also contains helium gas. What is the partial pressure of the helium gas?.