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C1Combustion Edexcel

Edexcel C1 Topic 5 part 2 Combustion

QuestionAnswer
What is incomplete combustion? When there is NOT ENOUGH oxygen for a fuel to burn
What is complete combustion? When there is PLENTY of oxygen for a fuel to burn
What are the products of complete combustion of a Hydrocarbon? Carbon Dioxide and Water
What are the products of Incomplete Combustion? Soot, Carbon Monoxide and Water
What is the Hazard of Carbon Monoxide? Toxic
What is the formula of Carbon Monoxide? CO
What is the formula of Carbon Dioxide? CO2
Why is Sulfur Dioxide produced during combustion of fossil fuels? Because there are Sulphur impurities in the fuel
What is the pollution created by Sulphur Dioxide? Acid Rain
What is the pollution created by Carbon Dioxide? Greenhouse effect
What gas is causing acid rain? Sulphur Dioxide
What gas is causing the Greenhouse effect? Carbon Dioxide
Name a natural source of Carbon Dioxide Volcanic eruption
Name a human activity that produces Carbon Dioxide Burning fossil fuel
Why is there more Carbon Dioxide in Winter than in summer? It is colder so people burn fuel to keep warm
What is the evidence that humans are responsible for causing the Greenhouse effect? Levels of CO2 have increased steadily since the Industrial Revlution
What is the evidence that increased levels of CO2 are due to a natural cause? Levels of CO2 have risen up and down for millions of year.
name 2 things that chemists are trying to do to remove CO2 from the atmosphere Place iron in the Oceans to encourage plankton growth Convert CO2 into Hydrocarbons
What is a biofuel? Sugar cane is grown; the sugar is FERMENTED using yeast and alcohol is produced
How are biofuels made? Sugar cane is grown; the sugar is FERMENTED using yeast and alcohol is produced
Explain why biofuels are better than fossil fuels 1) biofuels are renewable 2) the CO2 produced during burning will be used by the next set of crops: the process is Carbon Dioxide Neutral
Explain the disadvantages of using biofuels rather than fossil fuels 1) The land used for growing the biofuel crop is not used for growing Food crops (so food prices may go up)2) The process is not Carbon-Neutral: some fossil fuels have to be burned for transport and using machinery in the factory.
Name 3 fuels extracted from crude oil petrol, diesel, kerosene
Name a fuel extracted from Natural gas methane
Name 4 factors to decide whether a fuel is a "good" fuel 1)how easily it burns 2)the amount of ash or smoke it produces 3) the comparative amount of heat energy it produces 4) how easy it is to store and transport
What is a fuel cell? A way to produce energy where Hydrogen COMBINES with Oxygen (Hydrogen does NOT burn!)
What is the advantage of using Hydrogen as a fuel? It produces only water when it is burned; no CO2 is produced
What is the disadvantage of using Hydrogen as a fuel? Can explode if not stored carefully
Is this equation balanced? CH4 + O2 --> CO2 + H2O No
What is the balanced equation for the combustion of methane? CH4 + 2 O2 --> CO2 + 2 H2O
What is the formula of Methane? CH4
what does this mean "Carbon Dioxide Neutral" All the CO2 produced during burning will be used by the next set of crops
What is fermentation? When the yeast turns sugar into alcohol
What does "non-renewable" mean? When a fuel is used up/burned much faster than it is produced
What does "renewable" mean? When a fuel is produced as fast than it is used up.
What does TEACUPS stand for? T=Is it easy to Transport? E=Does it give out a lot of Energy A=Is it easily Available? C=How much does it Cost? U=Is it usable (does it ignite easily)? P=Does it create little Pollution [need to state CARBON DIOXIDE, not pollution!] S=Is it Safe?
Why is Carbon Monoxide toxic? Carbon Monoxide BONDS more strongly to a red blood cell than oxygen (1 mark); as the red blood cells can not carry oxygen to the muscle cell (1 mark), there is no respiration you will eventually die
Balance this equation __C3H8 + __ O2 --> __CO2 + ___H2O _1_C3H8 + _5_ O2 --> _3_CO2 + _4__H2O
Balance this equation _2_CH4 + __ O2 --> _2_CO + ___H2O _2_CH4 + _3_ O2 --> _2_CO + _4__H2O
Balance this equation __CH4 + __ O2 --> __CO2 + ___H2O _1_CH4 + _2_ O2 --> _1_CO2 + _2__H2O
Which is NOT a product of combustion of Hydrocarbons? Carbon? Carbon Dioxide? Water? Hydrogen? Carbon Monoxide? Hydrogen
Created by: UrsulineChem