Why is a combustion reaction generally considered exothermic?
Answer and explanation
Correct answer: Because energy is released as heat and often as light
In combustion, a fuel reacts with oxygen to form products and releases energy to the surroundings as heat, often with light. Release of heat makes the reaction exothermic. Option B describes an endothermic reaction, in which heat is absorbed from the surroundings.
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What is the correct answer to this question?
Because energy is released as heat and often as light
Why is this the correct answer?
In combustion, a fuel reacts with oxygen to form products and releases energy to the surroundings as heat, often with light. Release of heat makes the reaction exothermic. Option B describes an endothermic reaction, in which heat is absorbed from the surroundings.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
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