1. A home builder installs electric baseboard heat and claims, "It is the cheapest and cleanest way to go." Apply your understanding of the second law of thermodynamics and net energy efficiency chain to evaluate this claim.
2. Someone tells you we can save energy by recycling it. How should you respond?
3. Should government tax breaks and other subsidies for fossil fuels and nuclear power be phased out and replaced with subsidies and tax breaks for improving energy efficiency and renewable energy alternatives. Explain© BrainMass Inc. brainmass.com October 25, 2018, 12:55 am ad1c9bdddf
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1. Cheapest ... maybe. But only because many electric utilities often give a better rate if you're all electric. On a head-to-head comparison most would disagree and give gas the clear win for heat. See: http://www.allthingsfrugal.com/f.h_options.htm Although they are 2005 numbers
Cleanest .... it depends on what the electric utility is using to generate that electricity. However, as the US electric load is about 50% coal-fired, that is unlikely. Natural gas however, is mainly methane which burns relatively clean.
Addressing it from a ...
Answer ponders thermodynamic efficiency and policy implications of renewable energy in new construction
Physical Science: Temperature, Climate, and Renewable Resources
1. Explain how the temperature difference between the poles and the equator drives the motion of the oceans and atmosphere.
2. What are the differences between ice caps and glaciers?
3. How do ocean currents affect local climate?
4. Why do we call groundwater in most areas a "nonrenewable resource"?
5. What is the Gulf Stream?
6. What countries are directly affected by the path of the Gulf Stream?
7. Find out what kind of rock is below the soil in your town. How did you find out this information?
8. Give an example of an ecosystem near your home. Describe how energy flows through this ecosystem.
9. How many different trophic levels were represented in your last meal?
10. What is the ozone layer? Where is it located? Why is it important to life on Earth?
11. What steps would have to be taken to reduce the severity of the greenhouse effect?
12. Where do electric cars obtain their energy? Is it true they do not generate pollution because they have batteries?