Flashcards in Chapter 12 Questions Deck (10):
In the US, how many watts of energy used continuously?
10,000 watts of energy
What are the two types of nonrenewable energy?
1. Fossil Fuels and
2. Nuclear Fuels
What are three examples of fossil fuels?
3. Natural gas
How is energy harnessed from fossil fuels?
The fuels are burnt and the heat energy is harnessed from the combustion.
What is the second law of thermodynamics?
When energy is transformed, it's ability to do work diminishes (some energy is always going to be lost)
What is the efficiency rate of coal?
What is the EROEI?
Energy Return On Energy Investment:
Energy obtained from fuel
Energy invested to obtain fuel
Which is the most efficient?
Train; bus; bicycle; car
What is normally the capacity of a typical US power plant?
500 MW of electricity