Average ozone concentrations in Jakarta, Indonesia have been reported to be 0.015mg m3 and in Tokyo, Japan are 20ppbv. What is the approximate ratio of these two values when expressed in the same units?

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: Prepare a short note of the following environmental incidents: (a) the Great Smog of London. (b) the…

A: An Environmental Incident can be defined as an event that may cause harm to an environmental…

Q: In the atmosphere, is it more common to find two oxygen molecule to joined together than find a…

A: Oxygen is found naturally as a molecule. Two oxygen atoms strongly bind together with a covalent…

Q: 3. If 0.500g of magnesium was reacted with HCl and 461lmL of hydrogen gas was collected over water…

A: The reaction taking place is  Mg + 2 HCl -----> MgCl2 + H2  Hence from the above reaction we can…

Q: Why ozone layer depletion is an environmental hazard? Mention any two ways by which depletion of…

A: Ozone layer is a thin part in earths atmosphere that absorbs harmful ultraviolet rays from the sun.

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: A 0.215 g sample of zinc metal reacted with excess hydrochloric acid according to the following…

A: Theoretical Yield is the yield or the products that could be formed from the given amount of the…

Q: >Do the reactions involved in ozone depletion involve changes in oxidation state of the O atoms?…

A: CFCs forms free radical on reacting with UV resulting in continues depletion of ozone layer.

Q: Calculate the enrichment factors from effusion for a mixture of 235UF6 and 238UF6, uranium…

A: The Grahams Law describes the effusion of two mixtures of two gases through a small hole. The ratio…

Q: Is it possible to create ozone with the technology we have today?

A: Stratospheric ozone is formed naturally through the interaction of solar ultraviolet (UV) radiation…

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: Define the term troposphere?

A: To find: The definition of troposphere

Q: What do you mean by Flue gas conditioning?

A: Flue Gas Conditioning is the controlled injection of small quantities of sulfur trioxide into the…

Q: How many mols of ozone must decompose to produce 0.870L of oxygen? 2O3 ---> 3O2

A: The number of moles of ozone is calculated as,

Q: What are the differences between anhydrous atmosphere and inert atmosphere?

A: Hbhhb

Q: 4.8 g of an inorganic metal oxide ore mainly contains 93% of Nickel (III) oxide which decomposes to…

A: The balanced equation is   2 Ni2O3 (s) -------> 4 Ni (aq) + 3 O2 (g) Mass of ore = 4.8 g Mass…

Q: As of the writing of this text, EPA standards limit atmospheric ozone levels in urban environments…

A: Given that Area covered by the air above Los Angeles = 4000 sq. miles = 1.036 x 1010 m2 . and height…

Q: The atmosphere contains about 5.2×10^15 t of air. What mass in metric tons of carbon dioxide is in…

A:

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: The limit to the level of sulfur dioxide (SO,) in ambient air, set by the Turkish National Ambient…

A: Allowed concentration of SO2 = 350 ug/m^3 Now, 1 m^3 = 1000 L So, Allowed concentration = 350/1000…

Q: In which sphere ozone layer depletion is found and what conditions are created by ozone depletion?

A: Introduction: A thin gaseous layer above the earth surface is known as earth's atmosphere. Based on…

Q: Name two air pollutants which forms photochemical smog.

A: Given Name two air pollutants which forms photochemical smog

Q: Select from the following which steps are involved in the natural production of ozone in the…

A: In the stratosphere, the concentration of ozone is the maximum. The ozone gas is produced naturally…

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: A reaction at 20.0 °C evolves 333. mmol of boron trifluoride gas. Calculate the volume of boron…

A:

Q: What emissions from human activities lead to ozone depletion? What are the chlorine reactions that…

A: Ozone layer act as protective shield for earth's atmosphere and prevent harmful ultra violet (UV)…

Q: Pure FeS; is bumt with 60% excess air. Calculate the percentage of N2 by volume after the reaction.…

A: According to the law of chemical equivalence, in a chemical reaction, the number of equivalents that…

Q: Give one main reason of ozone depletion?

A: Give one main reason for ozone depletion?

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

A: Given compound: CFBr3

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

A:

Q: Mid-latitude ozone depletion can happen because of denitrification that occurs on cold sulfuric acid…

A:

Q: When ozone levels in urban area reach unhealthy levels, residents are typically urged to avoid…

A: The chemical reactions that lead to the formation of smog are: Nitrogen dioxide breaks down in…

Q: Assume that a single cylinder of an automobile engine hasa volume of 524 cm3. (a) If the cylinder is…

A: a) Since PV = nRT  where P = pressure in atm = 0.98  V = volume in lit = 524 / 1000 = 0.524 T =…

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: Select which of the following conditions are necessary for the process in the previous two questions…

A: Among the given options two options are mainly responsible for the ozone depletion over south…

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: Ch 11: At what percentage does lack of Oxygen cause loss of consciousness and potential death? 21% O…

A: If Oxygen level in atomsphere 25% percentage then Increasing fire risk.  Safe zone for human and…

Q: Describe the principle of electrostatic precipitator and cyclone separator. How these…

A: Principle of Electrostatic Precipitator: Electrostatic precipitators work on the standard of the…

Q: If I have a canister of 6.780 L of gaseous wraithpathogenium (Wpg) at STP, what is the mass of that…

A:

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

A:

Q: The estimated average concentration of NO2 in air in theUnited States in 2006 was 0.016 ppm. (a)…

A: The partial pressure and molecules of NO2 in the air are to be calculated from the given data.…