Quiz 6 Flashcards

(46 cards)

1
Q

Chemical energy

A

Energy stored within the bonds of chemical structures

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2
Q

Thermal energy

A

Energy of the random motion of Adams and molecules

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3
Q

What percent less CO2 does natural gas produce compared to coal?

A

45%

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4
Q

Why does an increase in c atoms increase the boiling point?

A

There are bigger molecule needing more energy to “lift”

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5
Q

Thermal cracking

A

Uses heat

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6
Q

Nuclear energy

A

Energy stored within the neutrons and protons in the atom

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7
Q

Peat

A

Moist plants that decay

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8
Q

Cracking

A

Takes large hydrocarbons and breaks them into smaller ones

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9
Q

Increase octane rating

A

Increase resistance to knocking

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10
Q

Coal

A

Complex mixture of substances

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11
Q

Products of combustion

A

CO2 and H2O

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12
Q

Isomers

A

Two or more compounds with the same molecular formula but different arrangements of atoms

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13
Q

What type of potential energy do hydrocarbons have?

A

Chemical energy

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14
Q

More places in molecule

A

More knocking

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15
Q

Energy sources have ______ energy

A

Potential

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16
Q

Alkanes

A

Hydrocarbons with c-c single bonds

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17
Q

Mechanical energy

A

Macroscopic object moving

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18
Q

What type of kinetic energy is released from combustion?

A

Thermal energy

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19
Q

Catalytic reforming

A

A process that rearranges atoms within a molecule

20
Q

Petroleum

A

Liquid mixture of hydrocarbons

21
Q

Anthracite

A

High carbon content high heat and pressure

22
Q

What was the top fuel in the 1800s?

23
Q

Unit for energy

24
Q

Catalytic cracking

A

Uses a chemical

25
Exothermic
ReAction that releases energy
26
What is one advantage of petroleum over coal?
Easier than coal to mine
27
Endothermic
Reaction requires energy to be put in
28
Alkenes
Hydrocarbons with a c-c double bond
29
What do alkenes end in?
-ene
30
What is petroleum mostly made of?
Alkanes
31
First law of thermodynamics
Energy is converted from one form to another but cannot be created or destroyed
32
Why is coal good?
Cheap, abundant, continuous power
33
Knocking
Nonuniform combustion in a piston
34
Radiant energy
Suns electromagnetic waves
35
What is the fastest growing energy source in the US?
Natural gas
36
What process do chemicals undergo to get energy out of their bonds?
Combustion
37
Alcohols
Hydrocarbons with a c-oh group on the end
38
Electric energy
Energy electrons moving together through a conductor
39
What is natural gas a mixture of?
Methane, ethane, propane, and butane
40
What do petroleum’s end in?
-and
41
Fractional distillation
Separation of a mixture into fractions that differ in boiling points
42
What percent less CO2 does natural gas produce compared to oil?
30%
43
What is a hydrocarbon?
Molecules made of only hydrogen and carbon
44
What do alcohols end in?
-ol
45
What is the main component of natural gas?
Methane
46
Clean coal
Removal of pollutants