(a) What is the difference between chlorofluorocarbonsand hydrofluorocarbons? (b) Why are hydrofluorocarbonspotentially less harmful to the ozone layer than CFCs?

Q: Explain the use of the LIDAR technique in atmospheric monitoring. In particular, describe the…

A: The full form of LIDAR is light detection and ranging. It  is an optical remote sensing technology…

Q: give five projects that will help to reduce or prevent air pollution

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Q: Based on the problems associated with air pollution in the case study, suggest TWO (2) mitigation…

A: Hospital is a sensitive place for health system.All qualities in and outside the hospital should be…

Q: Describe the composition of the atmosphere in terms of the major components in dry air at sea level?

A: The charged or neutral particles combining together to form earth atmosphere is called its…

Q: Which of the following is NOT a natural source of air pollution? A Agriculture B Pollenation c)…

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Q: Explain the different mechanisms by which ozone is formed in the troposphere as a pollutant and in…

A: Ozone in the stratosphere protects us from the Sun's harmful ultraviolet rays. However, ozone in the…

Q: Explain how ozone in the upper atmosphere functions to filter short-wavelength solar radiation, and…

A: Dear student I have given answer to your question in the image format.

Q: Explain the relation between air pollution and environmental chemistry.

A: Air pollution and environment chemistry is directly proportional to each other.

Q: (a) How are the boundaries between the regions of the atmosphere determined? (b) Explain why the…

A: a. The atmosphere is divided into four regions on the basis of their temperature profiles.The…

Q: s) of the Sun's energy, 25% is reflected from the atmosphere, 23% is absorbed by the aimosphere, and…

A: We have to determine the % of energy absorbed by the earth.

Q: * The Ozone gas at STP contains (6.022 x 10^23) molecules. True Flase

A: Ozone is a trimolecular gas consisting of oxygen atoms. It's chemical formula is O3.

Q: The molar heat capacity of a diatomic molecule is 29.1 mol. Assuming the atmosphere contains only…

A: The heat capacity (C) is the amount of heat (q) that a specific substance absorbs or releases when a…

Q: What happens to the air pressure as you move from the troposphere to the thermosphere? Discuss it.

A: Air pressure and density work do change altogether as we enter the different layers of the…

Q: Pick a source of (SO2) emissions and describe two ways (SO2) emissions from that source can be…

A: There are many sources of sulfur dioxide emission but one of the major sources is:

Q: What is the secondary criteria pollutant according to NAAQS ?

A: NAAQS stands for national ambient air quality standards. In the United States, the allowed levels of…

Q: 19. In a combustion reaction, what mass of propane (C₂H₂) would be needed to produce 100. L of…

A: Given :  Volume of CO2 produced = 100. L  Pressure of CO2 gas = 105 kPa  Temperature = 57°C

Q: Explain the role of ozone gas in troposphere and stratosphere. What do you understand by ozone layer…

A: The atmosphere is composed of different layers like the troposphere, stratosphere, mesosphere,…

Q: Name two air pollutants which forms photochemical smog.

A: Given Name two air pollutants which forms photochemical smog

Q: Compare and contrast the roles of ozone (O3) and nitrogen dioxide (NO2) in the stratosphere and in…

A: Light emitted from the sum resembles that of a 6000 K black body. The intensity of the radiation…

Q: Explain CFCs ?

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Q: Which of the following molecules are CFC's capable of destroying stratospheric ozone? (A) CF2Cl2 (B)…

A: “Since you have posted a question with multiple sub-parts, we will solve first question for you. To…

Q: Would you expect the substance CFBr3 to accelerate the depletion of the ozone layer?

A: Given compound: CFBr3

Q: Calculate the stoichiometric fuel/air mass ratio of the combustion of 80 mol decane in air. Assuming…

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Q: How many collisions does a single Ar atom make in 1.0 s when the temperature is 25oC and the…

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Q: Chemistry What are the major factors that affect the emission factors of CH4 and N2O emitted from…

A: An average emission rate of a given green house gas (CO2, CH4, N2O etc.)  for a given source,…

Q: Differentiate between acute and chronic health effects from air pollution.

A: Air pollution is now a days a life-threatening problem. Air pollution arises due to emission of…

Q: The following data is from a prospective cohort study examining the association between air…

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Q: explain the cycle for the formation of ozone layer in the stratosphere. Inlcude pictures and the…

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Q: Which of the following is NOT a natural source of air pollution? A Agriculture B Pollenation…

A: Please find your solution below : Air pollution refers to the presence or introduction of harmful…

Q: How do chemists know that none of the individual Lewis structures of ozone are not accurate…

A: The individual Lewis structures for ozone are not accurate because experimental evidence indicates…

Q: what properties of CFC's make them ideal for various commercial application but also make them a…

A: Therefore the physical properties of CFC's make them ideal for various application like freezers,…

Q: Discuss the activity of ozone as a greenhouse gas. Write down the chemical reactions of ozone…

A: Ozone layer is a thin layer in the Earth's atmosphere that absorbs ultraviolet light coming from…

Q: What is the difference between a CFC and an HFC?

A: Chlorofluorocarbons are commonly known as CFC Hydrofluorocrbons are commonly known as HFC

Q: What volume of O₂ at STP will be needed to burn 36.1 g of B₂H₆?

A: Given :- mass of B2H6 = 36.1 g  To calculate :- volume of O2   at STP :-  1 mol = 22.4 L  number of…

Q: How many ozone molecules are in 1.0 L of air in Mexico City? Assume T = 25 °C.

A:

Q: 2. The concentration of of ozone (O3) in Beijing on a summer day (P = 101.325 kPa ; T = 30°C) is 125…

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Q: Why are hydrofluorocarbons potentially less harmful to the ozone layer than CFCs?

A: As CFC's diffuse into the stratosphere, they are exposed to high energy radiation, which can cause…

Q: 4. Which of the following processes add methane (CH4) to the atmosphere? A. Breakdown of plant and…

A: The process that  add methane into the atmosphere is LEAKAGE OF NATURAL GAS FROM PIPELINE. the main…