13543094
Description
Flashcards by Alvaro Vargas Calero, updated more than 1 year ago
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Created by Alvaro Vargas Calero
over 6 years ago
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| Question | Answer |
| Spontaneous reaction | Is a reaction that favors the formation of products at the conditions under which the reaction is occurring. A roaring bonfire (see next flashcard) is an example of a spontaneous reaction. |
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A fire is exothermic, which means a decrease in the energy of the system as energy is released to the surroundings as heat. The products of a fire are composed mostly of gases such as carbon dioxide and water vapor, so the entropy of the system increases during most combustion reactions. |
| This combination of a decrease in energy and an increase in entropy means that combustion reactions occur spontaneously. |
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