Problem 1
List four environmental/social problems associated with the expansion of hydroelectric power.
Problem 3
Explain the origin of coastal winds.
Problem 4
List four pros and cons of wind power.
Problem 6
Which two types of energy are collected under the title of marine energy?
Problem 7
What is meant by geothermal energy? List some examples of how and where it is tapped. Why are all geothermal resources not used to generate electricity? What are some environmental issues associated with geothermal energy?
Problem 9
What is meant by solar thermal electricity, and how is it generated? Describe the operation of a solar power tower that uses molten salts. What is meant by the term cogeneration?
Problem 10
Write the general chemical reactions involving metal oxides by which a fuel can be produced by using concentrated solar energy.
Problem 11
State the second law of thermodynamics. According to this law, what formula gives the maximum fraction of heat that can be transformed into electricity?
Problem 12
Define the terms photovoltaic effect and band gap. Why is amorphous rather than crystalline silicon used in some solar cells? Describe the process of chemical vapor deposition.
Problem 15
List four general advantages and four general disadvantages of direct solar energy.
