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Exos= outside , thermos=temperature or heat So within the definition itself it can be known that in exothermic reactions heat is released. In chemical reactions the energy supplied is use in breaking of bonds, but energy is release by making bonds. In exothermic reactions, the energy supplied is sufficient for chemical reaction to occur (to break existing bonds) and the excess energy is given in the form of heat (from making new bonds).
If the reaction is exothermic, it means that the total energy it took to break the bonds is less than the total energy released when forming new bonds -- so net energy is released in the form of heat. for example 2H2 +O2 ----> 2H20 which is exothermic reaction. Combustion reactions in general are exothermic reactions.

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16y ago
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15y ago

Heat is released from the sun in rays. Since it gives off heat, it is an exothermic reaction.

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12y ago

Yes, in exothermic reactions heat is released. It is the definition of a exothermic reaction.

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13y ago

Exothermic - which is why there is life

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11y ago

Yes

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Q: How is heat from the sun an exothermic reaction?
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Related questions

What is the type of heat reaction which occurs when heat is given off by the reaction?

Heat is released during an exothermic reaction.


A reaction that releases energy in the form of heat?

It is called an exothermic reaction. Example: a burning candle


How are endothermic reaction different from exothermic reaction?

Exothermic reaction: with release of heat Endothermic reaction: with absorption of heat


A chemical reaction in which heat is released is?

exothermic reaction .


What happens in a exothermic reaction?

In an exothermic reaction, the total making and breaking of bonds results in a net release of energy.


How are exothermic reation different from endothermic reaction?

Exothermic reaction: with release of heat Endothermic reaction: with absorption of heat


What is heat of the reaction is releasesd?

If heat from a reaction is released, it is an exothermic reaction.


Is combustion exothermic?

Yes, very. Exothermic - Reaction that produces heat. Endothermic - Reaction that absorbs heat.


How are exothermic and endothermic reactions different?

Exothermic reaction: with release of heat Endothermic reaction: with absorption of heat


What is the equation for exothermic reaction?

In exothermic reactions heat is liberated. So reaction can be reactants---->products+heat


What is released by exothermic reactions?

Heat is released by an exothermic reaction. Exothermic means heat releasing.


What do exothermic reactions do?

An exothermic reaction releases heat