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Combustion of fuels core practical

Last updated 5 months ago
29 questions
Review of Year 8 fuels topic
1

The products for complete combustion of a hydrocarbon are:

1

The products for incomplete combustion of a hydrocarbon are:

1

The product(s) for combustion of H₂ is/are:

1

Carbon monoxide is a toxic gas because it:

1

Which type of combustion causes soot buildup in appliances?

1

Which impurity in fuels will form SO₂ in combustion of coal?

1

What environmental problem is caused when SO₂ dissolves in water?

1

What pollutant gas is formed at the high temperatures and pressures in car engines?

1

Which of the following are disadvantages of hydrogen fuels?

1

Which of the following are advantages of hydrogen fuels?

1

Petrol, kerosene, and diesel oil are non-renewable fossil fuels obtained from:

1

Methane is a non-renewable fossil fuel found in natural gas.

1

Fossil fuels and natural gas are:

Combustion of alcohols core practical
1

What is used to measure the change in mass of the fuel?

1

How is the change in mass calculated?

1

Which variable is the type of alcohol combusted? (1 Point)

1

Which variable is the volume of water heated? (1 Point)

1

Which variable is the height of the beaker above the flame? (1 Point)

1

Which variable is the material the beaker is made out of above the flame? (1 Point)

1

Which variable is the presence or absence of a wind guard? (1 Point)

1

Which variable can be calculated using the temperature change of the water and the mass of alcohol combusted? (1 Point)

2
How would you calculate the mass of alcohol needed for a 1oC rise in temperate?
mass of alcohol needed for a 1oC rise = ____________________/ _____________________
Other Answer Choices:
mass of alcohol
temperature rise
1

Which variable is the mass of alcohol needed for a 1°C rise in temperature? (1 Point)

1

Which of the following are possible errors in this experiment? (4 Points)

1
How would the following error affect the value for the mass of alcohol needed for a 1oC rise in temperature?
Evaporation of alcohol - Mass of alcohol combusted will be _____________ so the estimate will be _____________ .
Other Answer Choices:
too high
1
How would the following error affect the value for the mass of alcohol needed for a 1oC rise in temperature?
incomplete combustion - Mass of alcohol combusted will be _____________ so the estimate will be _____________ .
Other Answer Choices:
too high
1
How would the following error affect the value for the mass of alcohol needed for a 1oC rise in temperature?
Energy loss to surroundings - Mass of alcohol combusted will be _____________ so the estimate will be _____________ .
Other Answer Choices:
too high
1
How would the following error affect the value for the mass of alcohol needed for a 1oC rise in temperature?
Volume of water higher than intended - Mass of alcohol combusted will be _____________ so the estimate will be .
Other Answer Choices:
too high
1
Run the simulation and answer the following question
As the number of carbons on the alcohol increases the mass of the alcohol needed for a 1oC increase in temperature ______________
Other Answer Choices:
decreases
increases