Assignment 5

Give mw the answers only please be specific on what the answer is for both not just a bunch of calculations

15. One year, a herd of cattle released 5.84 metric tons of CH4 (methane) into the atmosphere. How many metric tons of carbon did this methane contain?

7) The most important reaction that allows our cars to do work is octane (CSH18) combustion 2 C8HI8 + 25 02 à 16 C02 + 18 H20 a) Theoretically speaking, if we fully combust 3.0 kg of octane, and keep the products at STR, what volume of gas do we expect to be produced? b) If the % yield for this combustion reaction is 90%, what is the actual volume? 8) Name two characteristics that describe real gases and not ideal gasses. 9) a) A climber takes a mole of ideal qgas to the top of Mount Everest, where the pressure is 304 torr and the temperature is subzero at -17° C. What is the volume of the gas? b) The gas taken to Mount Everest is oxugen gas. What is the root mean square velocity of gas molecules in that sample of gas? 10.) a) An 8.00L tank at 7.3° C is filled with 24 g of dinitrogen monoxide (N2O) and 8.2 g of sulfur hexafluoride gas (SF6). What is the mole fraction of sulfur hexafluoride? b) What is the ratio between the rates of effusion of sulfur hexafluoride and dinitrogen…

* What amount (in mol) and what mass (in kg) of carbon dioxide are produced when 20 gallons (approximately 2.0 x 10' kg) of octane (C3H18) is combusted? C3H18(1) +O2(g) CO2(g) + H;O(1) A: 1.4 x 10°; 62

Consider this information about two greenhouse gases, CH4 and N2O. Which statement is correct for CH4? (10) Greenhouse Gas Abundance in Troposphere, % Factor N20 160 3.1 x 10-5 CH4 30 1.8 x 104 CH4 is less effective greenhouse gas and there is less of it in troposphere. )) CH4 is less effective greenhouse gas and there is more of it in troposphere. )) CH4 is less effective green house gas and there is less of it in troposphere. ) CH4 is more effective green house gas and there is more of it in troposphere.

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16. The combustion of gasoline (octane) in a car engine can be represented by the following equation: 2C3H18(1) + 2502(g) a. What mass of oxygen is used up to burn a full tank of 36.00 kg of gasoline? Text --> 16CO2(g) +18H20(g) b. Why might a vehicle that is calibrated to run perfectly at sea level run poorly at higher elevations? Text Тext According to the Canadian Automobile Association, the average Canadian drives 20,000 km/yr. C. Assuming that distance, how many more kg of carbon dioxide are added to the atmosphere each year by a Toyota Tacoma (fuel economy of 12.8 L/100 km) than a Toyota Prius (4.52 L/100 km)? The density of gasoline is 0.719 kg/L.

Q29 Santa Monica Big Blue Bus operates a fleet of CNG buses, which run on compressed natural gas (CNG), natural gas that has been compressed into a much smaller volume in the fuel tank. A newly designed CNG vehicle carries about several thousand cubic feet of compressed natural gas which contain 72 kg (kilograms) of carbon. If all of the natural gas is burned, how many kilograms of carbon dioxide will be emitted into the atmosphere? Assume no residue remains and the carbon dioxide is the only product in the combustion. If you are presenting this question, please explain the following: The steps in the calculation process O Please write out the steps involved in the conversion process including the units O Please explain how to operate on the units Please explain how to manipulate the powers of ten by hand (e.g. product rule and the quotient rule) How to apply the appropriate rule to the calculation: O addition-subtraction rule ("the decimal places rule"), OR multiplication-division…

5cd_i-5c7IV_IVquz8U4U02epq7z4kBnpYZ5iA/edit & nsions Help EB Ga... estions: 1 2 11 + BIU Key Words: global warming et 3 1. Why is oxygen NOT a greenhouse gas? A 4 > DOE-E X-E greenhouse gas 6 infrared energy 3. The atmosphere on the planet Venus is almost 96 % carbon dioxide. What effect might its concentration of carbon dioxide have on the average surface temperature on Venus? is not a greenhouse gas because it is transparent to infrared light. and greenhouse gasses absorb oxygen infrared radiations. meaning it can not absorb heat. 2. Why is the effect of greenhouse gases in the atmosphere similar to the effect of glass surrounding a greenhouse? Page 3: The Structure of Greenhouse Gases Questions 4. What effect does an increase in the atmospheric carbon dioxide levels (and therefore rising temperatures) have on the amount of water vapor in the atmosphere? Why? 3 7 I 5. Both coal and natural gas can be burned to generate electricity. However, burning natural gas produces about half the…

The toy rockets were engineered so well that now you have dreams of creating a real life replica that can carry people to the space station. Aspirations of becoming rich and famous overcome your thoughts.  You know that when this compound (Ammonium perchlorate) is heated at 200 C, it breaks down to a variety of gasses, including N2(g), Cl2(g), O2(g), and H2O(g). You know that the rocket will fly due to the sudden appearance of hot gaseous products in a small initial volume that will result from the rapid increase in the pressure and temperature. What total pressure of gas would be able to be produced at 800 C by igniting 7.0X10^5 kg of NH4ClO4 and allowing it to expand to  a volume of 6.4X10^6 L? (ideal gas behavior)

The toy rockets were engineered so well that now you have dreams of creating a real life replica that can carry people to the space station. Aspirations of becoming rich and famous overcome your thoughts.  You know that when this compound (Ammonium perchlorate) is heated at 200 C, it breaks down to a variety of gasses, including N2(g), Cl2(g), O2(g), and H2O(g). You know that the rocket will fly due to the sudden appearance of hot gaseous products in a small initial volume that will result from the rapid increase in the pressure and temperature. What total pressure of gas would be able to be produced at 800 C by igniting 7.0X10^5 kg of NH4ClO4 and allowing it to expand to  a volume of 6.4X10^6 L? (ideal gas behavior) Full solution please

Constants I Because of increasing evidence of damage to the ozone layer, chlorofluorocarbon (CFC) production was banned in 1996. However, many older cars still have air conditioners that use CFC-12 (CF2 Cl2). These air conditioners are recharged from stockpiled supplies of CFC-12. Suppose that 100 million automobiles each contain 1.3 kg of CFC-12 and leak 25 % of their CFC-12 into the atmosphere Part A How much chlorine, in kg, is added to the atmosphere each year due to these air conditioners? Express your answer using two significant figures. per year. ΑΣφ mci = 19 kg/yr