Question 1

The statement "you can't get something for nothing" is another way of expressing

Accepted Answer

A) the first law of thermodynamics. 
B) the second law of thermodynamics. 
C) Boyle's law. 
D) the third law of thermodynamics. 
A) the first law of thermodynamics. 
B) the second law of thermodynamics. 
C) Boyle's law. 
D) the third law of thermodynamics.

Question 2

The most energy efficient method for converting biomass into useful energy is to

Accepted Answer

A) ferment sugars and starches from plants to form ethanol, which can be burned. 
B) distill wood in the absence of air to form methanol, which can be burned. 
C) use bacteria to break down plant material to produce methane. 
D) burn the plant material directly. 
A) ferment sugars and starches from plants to form ethanol, which can be burned. 
B) distill wood in the absence of air to form methanol, which can be burned. 
C) use bacteria to break down plant material to produce methane. 
D) burn the plant material directly.

Question 3

Catalytic reforming is a process for converting

Accepted Answer

A) low octane rated alkanes into high octane rated aromatics. 
B) high octane rated alkanes into low octane rated aromatics. 
C) low octane rated alkanes into high octane rated branched alkanes. 
D) high octane rated alkanes into low octane rated branched alkanes. 
A) low octane rated alkanes into high octane rated aromatics. 
B) high octane rated alkanes into low octane rated aromatics. 
C) low octane rated alkanes into high octane rated branched alkanes. 
D) high octane rated alkanes into low octane rated branched alkanes.

Question 4

________ were introduced into western Europe in the Middle Ages.

Accepted Answer

A) Waterwheels 
B) Windmills 
C) Automobile engines 
D) Solar panels 
A) Waterwheels 
B) Windmills 
C) Automobile engines 
D) Solar panels

Question 5

Anthracite has a higher carbon content than wood.

Accepted Answer

A) True 
 B)False

Question 6

The use of gasoline is an endothermic reaction.

Accepted Answer

A) True 
 B)False

Question 7

Photovoltaic cells convert

Accepted Answer

A) solar energy into chemical energy. 
B) solar energy into mechanical energy. 
C) solar energy into electrical energy. 
D) solar energy into heat energy. 
A) solar energy into chemical energy. 
B) solar energy into mechanical energy. 
C) solar energy into electrical energy. 
D) solar energy into heat energy.

Question 8

Biomass does NOT produce

Accepted Answer

A) asphalt. 
B) methane. 
C) ethanol. 
D) biodiesel. 
A) asphalt. 
B) methane. 
C) ethanol. 
D) biodiesel.

Question 9

Fuels are ________ forms of matter.The energy content of fuels is released by ________.

Accepted Answer

The answer of Fuels are ________ forms of matter.The energy...

Question 10

What percentage of the electricity produced in the world today comes from nuclear fusion?

Accepted Answer

A) 0% 
B) 30% 
C) 50% 
D) 75% 
A) 0% 
B) 30% 
C) 50% 
D) 75%

Question 11

Given the following analysis of coal samples,which is the best fuel?

Accepted Answer

A) 95% C, 5% O 
B) 75% C, 25% O 
C) 50% C, 50% O 
D) 25% C, 75% O 
A) 95% C, 5% O 
B) 75% C, 25% O 
C) 50% C, 50% O 
D) 25% C, 75% O

Question 12

Approximately what percentage of the energy used to support our current lifestyle comes from fossil fuels?

Accepted Answer

A) 50% 
B) 35% 
C) 15% 
D) over 85% 
A) 50% 
B) 35% 
C) 15% 
D) over 85%

Question 13

There are several factors that can cause a chemical reaction to proceed faster.One such factor is ________.

Accepted Answer

Any of these: increa

Question 14

To make crude petroleum more useful,it must be

Accepted Answer

A) distilled. 
B) filtered. 
C) reduced. 
D) washed with water. 
A) distilled. 
B) filtered. 
C) reduced. 
D) washed with water.

Question 15

Breeder reactors allow for the use of

Accepted Answer

A) abundant and naturally occurring U-235 as a nuclear fuel. 
B) abundant and naturally occurring U-238 as a nuclear fuel. 
C) abundant and naturally occurring Pu-238 as a nuclear fuel. 
D) Breeder reactors allow for none of the above. 
A) abundant and naturally occurring U-235 as a nuclear fuel. 
B) abundant and naturally occurring U-238 as a nuclear fuel. 
C) abundant and naturally occurring Pu-238 as a nuclear fuel. 
D) Breeder reactors allow for none of the above.

Question 16

Burning 1.000 mol of methane in oxygen to form carbon dioxide and water produces 803 kJ of energy.How much energy is produced when 4.000 mol of methane is burned?

Accepted Answer

A) 358.0 kJ 
B) 1606 kJ 
C) 1205 kJ 
D) 3212 kJ 
A) 358.0 kJ 
B) 1606 kJ 
C) 1205 kJ 
D) 3212 kJ

Question 17

When the ethane and propane components of natural gas are cracked,two new compounds are formed which are essential monomers used in making plastics.These substances are ________.

Accepted Answer

ethylene a

Question 18

Branched hydrocarbons have a higher octane rating than straight chain hydrocarbons do.

Accepted Answer

A) True 
 B)False

Question 19

Approximately what percentage of U.S.electricity is generated by the burning of coal?

Accepted Answer

A) 25% 
B) 35% 
C) 45% 
D) 65% 
A) 25% 
B) 35% 
C) 45% 
D) 65%

Question 20

Coal liquefaction and gasification have the advantage of producing gases and liquids that are easy to transport.

Accepted Answer

A) True 
 B)False

Exam 15: Energy

The statement "you can't get something for nothing" is another way of expressing

The most energy efficient method for converting biomass into useful energy is to

Catalytic reforming is a process for converting

________ were introduced into western Europe in the Middle Ages.

Anthracite has a higher carbon content than wood.

The use of gasoline is an endothermic reaction.

Photovoltaic cells convert

Biomass does NOT produce

Fuels are ________ forms of matter.The energy content of fuels is released by ________.

What percentage of the electricity produced in the world today comes from nuclear fusion?

Given the following analysis of coal samples,which is the best fuel?

Approximately what percentage of the energy used to support our current lifestyle comes from fossil fuels?

There are several factors that can cause a chemical reaction to proceed faster.One such factor is ________.

To make crude petroleum more useful,it must be

Breeder reactors allow for the use of

Burning 1.000 mol of methane in oxygen to form carbon dioxide and water produces 803 kJ of energy.How much energy is produced when 4.000 mol of methane is burned?

When the ethane and propane components of natural gas are cracked,two new compounds are formed which are essential monomers used in making plastics.These substances are ________.

Branched hydrocarbons have a higher octane rating than straight chain hydrocarbons do.

Approximately what percentage of U.S.electricity is generated by the burning of coal?

Coal liquefaction and gasification have the advantage of producing gases and liquids that are easy to transport.

Chemistry

Atoms

Atomic Structure

Chemical Bonds

Chemical Accounting

Gases, Liquids, Solids, and Intermolecular Forces

Acids and Bases

Oxidation and Reduction

Organic Chemistry

Polymers

Nuclear Chemistry

Chemistry of the Earth

Air

Water

Biochemistry

Food

Drugs

Fitness and Health

Chemistry Down on the Farm

Household Chemicals

Poisons

Filters

Fuels are forms of matter.The energy content of fuels is released by .