study guide chap 8 Flashcards

1
Q

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

A

lignite

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2
Q

steam electric always produces the same amount of

A

thermal pollution

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3
Q

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

A

sedementary deopoist in the sea

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4
Q

why must coal have been formed in stagnant water

A

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

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5
Q

what is peat

A

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

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6
Q

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

A

bituminous

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7
Q

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

A

coal

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8
Q

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

A

anthracie

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9
Q

what is hydralic fracking and what is it used for

A

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

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10
Q

why is urfcae mining a problem

A

farming and farm land may be ditrubed

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11
Q

what is a generatoir and why are they used

A

devoce for converting mechanial engery into elctrical energg

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12
Q

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

A

lignite, subbituminous, bituminous, and anthracite.

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13
Q

what is the chemical eqn for natural gas combustion

A

natural gas+oxygen –> CO2+H2O+ heat

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14
Q

what unit of measurement is elrectiacal energy

A

WATTS

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15
Q

what is tubrines

A

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

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16
Q

what was the principle energy source in 1875

A

wood

17
Q

what is the cheapest way to mine coal

A

surface mining

18
Q

what is the energy content of fuel

A

amount of heat praoduced or given off

19
Q

what are source beds

A

layers ofsediment where petroleum is formed

20
Q

what type of fuel burns the cleanest

A

antracite

21
Q

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

A

antracite

22
Q

what is the energy consumption in the US

A
23
Q

how has underground mining imporovedd

A

the process operations working conditions and safety

24
Q

which type of coal is mostly found in eastern penssylvania

A

Bituminous

25
Q

what are some chracteristic of eastern coal

A

higher sulfer content and buried deeper

26
Q

what type of methods are ised for undergroun coal mining

A

room-and-pillar method and the longwall

27
Q

what is hydroppower and what are some facts about it

A

Hydropower is electricty created bywater is it clean and low cost

28
Q

what is longwall mining

A

coal mined by cutting deeper and cutting it in longer pieces

29
Q

ex of renewabela nd nonrenewable

A

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

30
Q

what are waste products from petroleum combustion

A

fly ash, soot bottom ash carbon minoxide sulfer

31
Q

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

A

coal

32
Q

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

A

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