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23 Nov 2019

What are some advantages and disadvantages of using natural gas vs. oil as energy sources? Suggest an alternative energy source to petroleum and natural gas. Can we afford not to use nuclear energy? What are some pros and cons?

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Compressed natural gas (which is methane, CH₄) is used as a fuel for some buses and other fleet vehicles as a cleaner fuel than diesel. It is also produced in large quantities in the United States, so there is a local source of the fuel. The natural gas is stored a compressed gas in the fuel tanks of the vehicles. Suppose a compressed natural gas (CNG) bus has a 400 liter compressed gas tank with a pressure of 1430 PSI (which equals 97.3 atm or 9854353 Pa) of methane at a temperature of 25 C (298 K). What is the maximum work that can be performed by this fuel tank assuming that the methane burns completely to form CO₂ and water vapor. Give the value as a positive number (since we are interested in the "work" being exported from the system). The ÎG for methane is -50.8 kJ/mol while the rest of the ÎG values are in the appendix of the textbook. The units for the final answer are kJ. Use exponential notation in the form of "1.0E+5" to enter the answer. Do not include any spaces when entering exponential notation.

Alternative Fuels

Our vehicles have come a long way from the Model T in the early 1900s. Each year the car industry comes out with new styles and incorporates new technologies. In recent history, the focus of the automotive world has shifted to fuel efficiency and even the possibility of using different fuel sources. As the world tries to reduce the dependence on fossil fuels societies all over the world are looking towards a future with a totally new kind of car. There are already hybrid cars on the roads today. What will the cars of the future run on?

This unit, you are going to do a little role-playing. Here is the scenario:

Congratulations! You have been elected to the Kaplanville Town Council's Steering Committee on Infrastructure and Energy. Kaplanville wants to make a name for itself as a premier city for renewable and alternative energy choices. As a member of this committee, you are responsible for researching the exciting new world of alternative fuel for vehicles. Through this exploratory committee, you will decide on your top choice for an alternative fuel station to construct in Kaplanville.

Do some research to learn more about alternative fuels:

Source: Fuel economy. (2012). Retrieved from http://www.fueleconomy.gov/feg/current.shtml

Source: Alternative fuels data center. (2012). Retrieved from http://www.afdc.energy.gov/fuels/

Use your research to complete the following three components to this unit's discussion:

1. Post at least one pro and one con for at least three of the following alternative fuel sources: (Note: to maximize your learning, please try not to repeat the information that was previously shared by your classmates).

a. Ethanol

b. Biodiesel

c. Natural gas

d. Propane

e. Hydrogen

2. During the unit, you should interact with your classmates and debate how suitable you think these alternative fuel sources might be for the future of vehicle transportation and Kaplanville.

3. Later in the unit week, make a post that contains your vote for which alternative fuel source you believe Kaplanville should create a station for. Be sure to give a clear explanation for your choice.

Be sure to review the Discussion Board Grading Rubric provided in the Course Syllabus.

For help with citations, refer to the APA Quick Reference Guide.

Use this reference when referring to your text:

Trefil, J., & Hazen, R.M. (2013). The sciences: An integrated approach. Hoboken, NJ: John Wiley & Sons, Inc.

Write a 350 word summary on the above questions, I am needing help to start the summary some good pointers and possibly a good summary to get my brain going on how to approach these questions. Please ellaborate