Combustion of propane? [tex]C_3 H_3+O_2 \rightarrow H_2 O+CO_2[/tex]
Answer Options:
Select one of four
A. The absorption of heat by the reactants
B. The release of heat with the products
C. An intermediary transition to butane
D. Methane as a secondary product
Answer (2)
Combustion is an exothermic reaction.
Exothermic reactions release heat.
The products of propane combustion release heat.
Therefore, the correct answer is the release of heat with the products. T h ere l e a seo f h e a tw i t h t h e p ro d u c t s
Explanation
Understanding Combustion Combustion is a chemical process that involves rapid reaction between a substance with an oxidant, usually oxygen, to produce heat and light. In the case of propane ( C 3 H 8 ), the balanced chemical equation for complete combustion is: C 3 H 8 + 5 O 2 i g h t ha r p oo n u p 3 C O 2 + 4 H 2 O
Exothermic Nature of Combustion Combustion reactions are exothermic, meaning they release heat. This release of heat is a characteristic feature of combustion.
Analyzing the Options Now, let's analyze the given options:
The absorption of heat by the reactants: This is incorrect because combustion releases heat, it doesn't absorb it.
The release of heat with the products: This is correct because combustion is an exothermic reaction.
An intermediary transition to butane: This is incorrect. Butane is a different alkane and not an intermediate in propane combustion.
Methane as a secondary product: This is incorrect. Methane is not typically a product of complete propane combustion.
Conclusion Therefore, the correct answer is that combustion of propane involves the release of heat with the products.
Examples
Combustion reactions are used every day to generate energy. For example, burning natural gas in a furnace heats homes, and the combustion of gasoline in a car engine provides the energy to move the vehicle. Understanding combustion helps us design more efficient engines and heating systems, and also helps us manage and prevent fires.
The combustion of propane is an exothermic reaction that releases heat. The reaction produces carbon dioxide and water as products. Therefore, the correct answer is B: The release of heat with the products.
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