It is believed that the reaction responsible or he depletion 0201e in the atohosphere 's Oalg)'t NoG)OgG) tMO, G) 17 46-41 q Q rearts with excess MO, how man will be produced?
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The reaction is given as follows:
The mole of O3 is calculated as follows:
According to the reaction,
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Solved in 3 steps with 4 images
- Halons are fluorocarbons that contain bromine, such asCBrF3. They are used extensively as foaming agents forfighting fires. Like CFCs, halons are very unreactive andultimately can diffuse into the stratosphere. (a) Based onthe data in Table , would you expect photodissociationof Br atoms to occur in the stratosphere? (b) Propose amechanism by which the presence of halons in the stratospherecould lead to the depletion of stratospheric ozone.The coal whose composition is given in the table below is burntwith 100% excess air. Calculate (a) the theoretical oxygenrequirement per 100 kg of coal (b) the theoretical air requirementper 100 kg of coal (c) the Orsat analysis of the gases when thecoal is burnt with 100% excess air. Component Weight % C 70.32 H2 3.91 S 0.52 O2 25.25Assume that a single cylinder of an automobile engine hasa volume of 524 cm3. (a) If the cylinder is full of air at 74 °Cand 0.980 atm, how many moles of O2 are present? (Themole fraction of O2 in dry air is 0.2095.) (b) How manygrams of C8H18 could be combusted by this quantity ofO2, assuming complete combustion with formation ofCO2 and H2O?
- its also not 4.57e-13The ultraviolet spectrum can be divided into three regionsbased on wavelength: UV-A (315–400 nm), UV-B (280–315nm), and UV-C (100–280 nm). (a) Photons from whichregion have the highest energy and therefore are the mostharmful to living tissue? (b) In the absence of ozone, whichof these three regions, if any, are absorbed by the atmosphere?(c) When appropriate concentrations of ozone arepresent in the stratosphere, is all of the UV light absorbedbefore reaching the Earth’s surface? If not, which region orregions are not filtered out?33a, no need to explain too much.
- This is PV=nRt? But what is n then?Assume that a single cylinder of an automobile engine hasa volume of 524 cm3. (a) If the cylinder is full of air at 74 °C and 0.980 atm, how many moles of O2 are present? (Themole fraction of O2 in dry air is 0.2095.) (b) How manygrams of C8H18 could be combusted by this quantity ofO2, assuming complete combustion with formation ofCO2 and H2O?The gas-phase reaction between hydrogen and iodine H2(g)+I22HI(g)proceeds with a rate constant for the forward reaction at 700C of 138 L/moI s and an activation energy of 165 kJ/moI. (a) Calculate the activation energy of the reverse reaction given that H f for HI is 26.48 kJ/moI and H f for I2(g) is 62.44 kJ/mol. (b) Calculate the rate constant for the reverse reaction at 700C. (Assume A in the equation k=AeE a /RT is the same for both forward and reverse reactions.) (c) Calculate the rate of the reverse reaction if the concentration of HI is 0.200 M. The reverse reaction is second-order in HI.
- The amount of anthropogenic SO2 emission from Pakistan was 180 kilo tonnes(kt) in 20191.How many grams of SO2 were emitted to the atmosphere?How many grams of Sulfur was emitted to the Atmosphere?Pakistan population was 216.6 million in 2019. How many kg of solidSulfur/Head was emitted?Refer to the following equation: Mg (s) + 2HNO3(aq) -> Mg(NO3)2 (aq) + H2 (g) A reaction between 0.359 grams of Mg and 21.12mL of a 0.450M HNO3 solution was conducted in a room witht he following conditions: 27.5 degrees Celius, 723mmHg of atospheric pressure. If .15mL of H2 were collected over water (by the water displacement method), calculate the percent yeild of the reaction. (Pressure H2O at 27.5 degrees Celius = 27.82 mmHg)[B] *refer tot he (2) photos below*