Chapter 12 Questions Flashcards Preview

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Flashcards in Chapter 12 Questions Deck (10):
1

In the US, how many watts of energy used continuously?

10,000 watts of energy

2

What are the two types of nonrenewable energy?

1. Fossil Fuels and
2. Nuclear Fuels

3

What are three examples of fossil fuels?

1. Coal
2. Oil
3. Natural gas

4

How is energy harnessed from fossil fuels?

The fuels are burnt and the heat energy is harnessed from the combustion.

5

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)

6

What is the efficiency rate of coal?

Approximately 35%

7

What is the EROEI?

Energy Return On Energy Investment:

Energy obtained from fuel
_______________________
Energy invested to obtain fuel

8

Which is the most efficient?

Train; bus; bicycle; car

Train

9

What is normally the capacity of a typical US power plant?

500 MW of electricity

10

What are the 4 types of coal AND a precursor to coal?

1. Lignite 2. Sub-bituminous
3. Bituminous 4. Anthracite

Precursor: peat