Question 1

Which of the following will cause the rate of a chemical reaction to speed up?

Accepted Answer

A) raising the temperature 
B) increasing the concentration of reactants 
C) adding a catalyst 
D) All of these will speed up the rate of a reaction. 
A) raising the temperature 
B) increasing the concentration of reactants 
C) adding a catalyst 
D) All of these will speed up the rate of a reaction.

Question 2

Which of the following alternative energy sources is not intermittent and does not require energy storage?

Accepted Answer

A) solar cells 
B) windmills 
C) tides 
D) All of the above are intermittent and requires energy storage. 
A) solar cells 
B) windmills 
C) tides 
D) All of the above are intermittent and requires energy storage.

Question 3

Given the potential benefits and risks associated with nuclear power,the desirability quotient for electrical generation by nuclear power is probably best described as

Accepted Answer

A) low. 
B) moderate. 
C) high. 
D) uncertain. 
A) low. 
B) moderate. 
C) high. 
D) uncertain.

Question 4

Fracking accounts for ________ percent of the natural gas production in the United States.

Accepted Answer

A) 25 
B) 40 
C) 60 
D) 50 
A) 25 
B) 40 
C) 60 
D) 50

Question 5

The inevitable energy lost as heat in the generation of electrical energy in the most efficient fossil fuel based power plant is a result of

Accepted Answer

A) the first law of thermodynamics. 
B) the second law of thermodynamics. 
C) a poor understanding of energy conversion. 
D) designed inefficiencies to increase costs to the consumer. 
A) the first law of thermodynamics. 
B) the second law of thermodynamics. 
C) a poor understanding of energy conversion. 
D) designed inefficiencies to increase costs to the consumer.

Question 6

The most abundant fossil fuel in the United States is

Accepted Answer

A) coal. 
B) natural gas. 
C) petroleum. 
D) wood. 
A) coal. 
B) natural gas. 
C) petroleum. 
D) wood.

Question 7

Microstates refers to the energy of molecular motion.

Accepted Answer

A) True 
 B)False

Question 8

In any conversion of energy from one form to another,some of the energy ends up as

Accepted Answer

A) entropy. 
B) heat. 
C) electricity. 
D) radioactivity. 
A) entropy. 
B) heat. 
C) electricity. 
D) radioactivity.

Question 9

The major components of petroleum is/are

Accepted Answer

A) benzene. 
B) water. 
C) organic compounds of sulfur. 
D) hydrocarbons. 
A) benzene. 
B) water. 
C) organic compounds of sulfur. 
D) hydrocarbons.

Question 10

The United States is estimated to have approximately what percentage of the world's coal reserves?

Accepted Answer

A) 10% 
B) 25% 
C) 40% 
D) 80% 
A) 10% 
B) 25% 
C) 40% 
D) 80%

Question 11

The location of most of the hydroelectric power in the United States is in the

Accepted Answer

A) northeastern states. 
B) mid-Atlantic states. 
C) mountainous western states. 
D) midwesternstates. 
A) northeastern states. 
B) mid-Atlantic states. 
C) mountainous western states. 
D) midwesternstates.

Question 12

Biomass may be burned directly or chemically converted to a more convenient form (liquid or gas).Which of the following statements is true?

Accepted Answer

A) The conversion of biomass to a more convenient form improves the overall efficiency of the energy conversion. 
B) The conversion of biomass to a more convenient form decreases the overall efficiency of the energy conversion. 
C) The conversion of biomass to a more convenient form does not affect the overall efficiency.Energy is conserved! 
D) All of the above statements are false. 
A) The conversion of biomass to a more convenient form improves the overall efficiency of the energy conversion. 
B) The conversion of biomass to a more convenient form decreases the overall efficiency of the energy conversion. 
C) The conversion of biomass to a more convenient form does not affect the overall efficiency.Energy is conserved! 
D) All of the above statements are false.

Question 13

Which of the following will have the greatest amount of entropy?

Accepted Answer

A) steam 
B) ice 
C) water 
D) All have the same amount of entropy. 
A) steam 
B) ice 
C) water 
D) All have the same amount of entropy.

Question 14

What metal,when added as a compound,increases octane rating of gasoline?

Accepted Answer

A) Pb 
B) Na 
C) Ag 
D) Au 
A) Pb 
B) Na 
C) Ag 
D) Au

Question 15

When coal is heated in the absence of air,the solid left behind is called

Accepted Answer

A) coal. 
B) coke. 
C) coal tar. 
D) carbon. 
A) coal. 
B) coke. 
C) coal tar. 
D) carbon.

Question 16

The decomposition of 2 mol of water to hydrogen and oxygen requires 137 kcal of energy.The reaction of hydrogen and oxygen to form 2 mol of water

Accepted Answer

A) requires 137 kcal. 
B) releases 137 kcal. 
C) requires more than 137 kcal. 
D) releases more than 137 kcal. 
A) requires 137 kcal. 
B) releases 137 kcal. 
C) requires more than 137 kcal. 
D) releases more than 137 kcal.

Question 17

When the overall equation for the photosynthesis process is written and balanced,how many molecules of water are required to make one glucose molecule,C₆H₁₂O₆?

Accepted Answer

A) 1 
B) 3 
C) 6 
D) 12 
A) 1 
B) 3 
C) 6 
D) 12

Question 18

The EROEI for ethanol has been estimated to be between 1.67:1 to 0.78:1.Which of the following is NOT a reason for the low ethanol EROEI values?

Accepted Answer

A) Ethanol has a lower fuel content than petroleum fuels. 
B) Large amounts of energy are required to distill the ethanol after it is formed. 
C) Some ethanol is changed to methane (CH₄)during the distillation process, so less ethanol is recovered. 
D) Ethanol is not easily available. 
A) Ethanol has a lower fuel content than petroleum fuels. 
B) Large amounts of energy are required to distill the ethanol after it is formed. 
C) Some ethanol is changed to methane (CH₄)during the distillation process, so less ethanol is recovered. 
D) Ethanol is not easily available.

Question 19

The efficiency of current solar cells is approximately

Accepted Answer

A) 3%. 
B) 15%. 
C) 25%. 
D) 75%. 
A) 3%. 
B) 15%. 
C) 25%. 
D) 75%.

Question 20

Which of the following forms of energy is the dirtiest?

Accepted Answer

A) coal 
B) electricity 
C) natural gas 
D) petroleum 
A) coal 
B) electricity 
C) natural gas 
D) petroleum

Exam 15: Energy

Which of the following will cause the rate of a chemical reaction to speed up?

Which of the following alternative energy sources is not intermittent and does not require energy storage?

Given the potential benefits and risks associated with nuclear power,the desirability quotient for electrical generation by nuclear power is probably best described as

Fracking accounts for ________ percent of the natural gas production in the United States.

The inevitable energy lost as heat in the generation of electrical energy in the most efficient fossil fuel based power plant is a result of

The most abundant fossil fuel in the United States is

Microstates refers to the energy of molecular motion.

In any conversion of energy from one form to another,some of the energy ends up as

The major components of petroleum is/are

The United States is estimated to have approximately what percentage of the world's coal reserves?

The location of most of the hydroelectric power in the United States is in the

Biomass may be burned directly or chemically converted to a more convenient form (liquid or gas).Which of the following statements is true?

Which of the following will have the greatest amount of entropy?

What metal,when added as a compound,increases octane rating of gasoline?

When coal is heated in the absence of air,the solid left behind is called

The decomposition of 2 mol of water to hydrogen and oxygen requires 137 kcal of energy.The reaction of hydrogen and oxygen to form 2 mol of water

When the overall equation for the photosynthesis process is written and balanced,how many molecules of water are required to make one glucose molecule,C₆H₁₂O₆?

The EROEI for ethanol has been estimated to be between 1.67:1 to 0.78:1.Which of the following is NOT a reason for the low ethanol EROEI values?

The efficiency of current solar cells is approximately

Which of the following forms of energy is the dirtiest?

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