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Questions and Answers
What is combustion?
What is combustion?
- A process that does not produce gaseous products
- A reaction that does not involve oxygen
- A low-temperature endothermic reaction between a fuel and an oxidant
- A high-temperature exothermic redox chemical reaction between a fuel and an oxidant (correct)
What is the purpose of activation energy in combustion?
What is the purpose of activation energy in combustion?
- To reduce the temperature of the reaction
- To produce smoke
- To extinguish the flame
- To initiate the combustion process (correct)
What happens during the combustion of solid fuels like wood and coal?
What happens during the combustion of solid fuels like wood and coal?
- They absorb heat from the surroundings
- They release water vapor as a byproduct
- They do not produce any gaseous byproducts
- They undergo endothermic pyrolysis to produce gaseous fuels (correct)
What is the characteristic indicator of the combustion reaction?
What is the characteristic indicator of the combustion reaction?
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What is the heat released when hydrogen and oxygen combust to form water vapor?
What is the heat released when hydrogen and oxygen combust to form water vapor?
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What is the characteristic indicator of the combustion reaction?
What is the characteristic indicator of the combustion reaction?
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What is the purpose of activation energy in combustion?
What is the purpose of activation energy in combustion?
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What happens during the combustion of solid fuels like wood and coal?
What happens during the combustion of solid fuels like wood and coal?
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What is the heat released when hydrogen and oxygen combust to form water vapor?
What is the heat released when hydrogen and oxygen combust to form water vapor?
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What is required for uncatalyzed combustion in air?
What is required for uncatalyzed combustion in air?
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