Assignment 5

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

A typical long-haul diesel truck travels an average of 72,000 miles annually. Diesel-powered trucks are though to be a major contributor of particulate matter less than 2.5 μm (PM) and nitrogen oxides (NOx) emissions from mobile sources. Assume the average long-haul diesel truck emits 8.67 g/mile of NOx. The annual emission rate (kg/yr) for NOx is most nearly: 15.2 O 625 O 64,0 O 1.57

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.

The U.S. proven natural gas reserves in 2013 were 323 trillion  ft3 . How long will these reserves last if there are no imports or exports and if the U.S. annual rate of use of 24.5 trillion  ft3  continues?

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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…

4. Photochemical smog is a type of air pollution in the troposphere of our planet produced when sunlight acts upon motor vehicle exhaust gases to form harmful substances such as ozone (O3). For example, nitrogen dioxide (NO2) reacts with atmospheric oxygen (O2) in the presence of light to produce ozone (O3) and nitrogen monoxide (NO).

A certain gaseous anesthetic contains 64.9% C, 13.5% and 21.6% O. At 120 ̊C and 750 mmHg, 1L of the gaseous compounds weighs 2.3 g. What is the molecular formula of the compound?Use the molar mass for C (12), H (1), andO (16).

Calculate the mass of the greenhouse gas, carbon dioxide (CO2) that you release into the atmosphere with each tank of petrol you consume in your car. assume the petrol you put into your car is pure octance (c8H18). The density of octance is 702 kg/m^3 (or 0.702g/ml). Assume a tank of gas is 60 litres

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Loss of atmospheric ozone has led to an ozone “hole” overAntarctica. The process occurs in part by three consecutive reac-tions: (1) Chlorine atoms react with ozone (O₃) to form chlorinemonoxide and molecular oxygen. (2) Chlorine monoxide forms ClOOCl. (3) ClOOCl absorbs sunlight and breaks into chlorine atoms andmolecular oxygen.(a) Write a balanced equation for each step.(b) Write an overall balanced equation for the sequence.