Fuels Quiz #2 Review

Which fuel emits the most least energy per kilogram of fuel?

• Gasoline

• Ethanol

• Hydrogen

• Jet Fuel

Which fuel produces the most amount of the greenhouse gas carbon dioxide per kilogram of fuel?

• Gasoline

• Jet Fuel

• Ethanol

• Hydrogen

Which observations could be made from looking at the graph below? Select ALL that apply.

• The majority of fuel emissions in the United States come from the transportation industry

• Petroleum is not used in electricity generation.

• Electric cars will decrease our dependence on fossil fuels.

• The transportation sector mainly uses natural gas.

• The industrial sector emits more CO2 from fossil fuels than commercial and residential sectors combined.

​An internal combustion engine powers a car with gasoline, which is made of many hydrocarbons, including octane. During combustion, what does octane mix with?​

• carbon

• oxygen

• hydrogen

• water

What is contained in the exhaust of hydrogen combustion?

• water, H2O

• carbon dioxide, CO2

• gasoline

• hydrogen

What is contained in the exhaust of gasoline combustion? Select ALL that apply.

• water, H2O

• carbon dioxide, CO2

• gasoline

• hydrogen

Which of the following best describes the relationship between particle movement and observable movement?

• As particles move faster, they expand and increase pressure, leading to movement of pistons, bubbles, or other objects. 

• As particles move slower, they expand and increase pressure, leading to movement of pistons, bubbles, or other objects. 

• Even when particles move the same speed, the pressure can change and lead to movement of pistons, bubbles, or other objects.

• Particle movement is not strong enough to impact observable movement. 

Which option best describes burning?

• An exothermic chemical reaction where a fuel reacts with oxygen to produce exhaust, including water and sometimes carbon dioxide

• An endothermic chemical reaction where a fuel reacts with oxygen to produce exhaust, including water and sometimes carbon dioxide

• An exothermic chemical reaction where a fuel reacts with carbon dioxide to produce exhaust, including water and sometimes oxygen

• An endothermic chemical reaction where a fuel reacts with carbon dioxide to produce exhaust, including water and sometimes oxygen

True or False:

The temperature always increases overall in a chemical reaction. 

• True

• False

A rocket engine uses liquid hydrogen to make a powerful explosion. To make this powerful chemical reaction happen, what does hydrogen mix with?

• carbon

• oxygen

• hydrogen

• water