study guide chap 8

Question 1

what type of coal is very low grade, and is rich in volatiles and is good foe feed stock for coal gasification

Answer 1

lignite

Question 2

steam electric always produces the same amount of

Answer 2

thermal pollution

Question 3

in what kind of geological formations are oil depostis most likely to devolop

Answer 3

sedementary deopoist in the sea

Question 4

why must coal have been formed in stagnant water

Answer 4

swampy wetlands where groundwater is near or slightly above the topsoil.

Question 5

what is peat

Answer 5

mixture of plant fragments form partly from decayed vegetation this is slwy built up in the swamps

Question 6

what type of coal is moost often burned at electrical power generation plants

Answer 6

bituminous

Question 7

of all engery sources which one has the largest reserves for furture use

Answer 7

coal

Question 8

what type of coal is high grade hard to ignite but burns wiht amlomst no smoke

Answer 8

anthracie

Question 9

what is hydralic fracking and what is it used for

Answer 9

used to relase fuels and its is drilin g into the groun d to get oils/natural gas

Question 10

why is urfcae mining a problem

Answer 10

farming and farm land may be ditrubed

Question 11

what is a generatoir and why are they used

Answer 11

devoce for converting mechanial engery into elctrical energg

Question 12

what is the correct seqeunce of coal ranked in terms of energuy content from loewest to highest

Answer 12

lignite, subbituminous, bituminous, and anthracite.

Question 13

what is the chemical eqn for natural gas combustion

Answer 13

natural gas+oxygen –> CO2+H2O+ heat

Question 14

what unit of measurement is elrectiacal energy

Answer 14

WATTS

Question 15

what is tubrines

Answer 15

A turbine is a rotary mechanical device that extracts energy from a fluid flow and converts it into useful work. The work produced can be used for generating electrical power when combined with a generator

Question 16

what was the principle energy source in 1875

Answer 16

wood

Question 17

what is the cheapest way to mine coal

Answer 17

surface mining

Question 18

what is the energy content of fuel

Answer 18

amount of heat praoduced or given off

Question 19

what are source beds

Answer 19

layers ofsediment where petroleum is formed

Question 20

what type of fuel burns the cleanest

Answer 20

antracite

Question 21

what type of coal is very hard high grade and high carbon

Answer 21

antracite

Question 22

what is the energy consumption in the US

Question 23

how has underground mining imporovedd

Answer 23

the process operations working conditions and safety

Question 24

which type of coal is mostly found in eastern penssylvania

Answer 24

Bituminous

Question 25

what are some chracteristic of eastern coal

Answer 25

higher sulfer content and buried deeper

Question 26

what type of methods are ised for undergroun coal mining

Answer 26

room-and-pillar method and the longwall

Question 27

what is hydroppower and what are some facts about it

Answer 27

Hydropower is electricty created bywater is it clean and low cost

Question 28

what is longwall mining

Answer 28

coal mined by cutting deeper and cutting it in longer pieces

Question 29

ex of renewabela nd nonrenewable

Answer 29

Renewable resources include timber, wind, hydropower and solar while nonrenewable resources include coal oil and natural gas.

Question 30

what are waste products from petroleum combustion

Answer 30

fly ash, soot bottom ash carbon minoxide sulfer

Question 31

what provides the greatest amount of energy for powering the US economy

Answer 31

coal

Question 32

what results form dumping of waste heat into nearby lakes rivers or bays

Answer 32

water is hot and makes oxygen lower which can suffocate the fish