Exothermic example

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Megan Verschuur 1C
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Joined: Wed Nov 18, 2020 12:26 am

Exothermic example

Postby Megan Verschuur 1C » Fri Jan 22, 2021 11:00 am

From the sapling week 3 questions:
Why is a car using gasoline an example of an exothermic reaction?

Sophia Stewart 3F
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Re: Exothermic example

Postby Sophia Stewart 3F » Fri Jan 22, 2021 11:03 am

An exothermic reaction releases heat. When a car uses gasoline, I believe combustion takes place. As combustion often involves fire, or heats up its environment, it can be classified as exothermic.

EnricoArambulo3H
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Re: Exothermic example

Postby EnricoArambulo3H » Fri Jan 22, 2021 11:10 am

As Sophia stated, exothermic reactions release energy, and would usually be released in the form of heat. If you were performing an exothermic reaction in a calorimeter, you would see an increase in the temperature of the calorimeter. I hope this helps!

Isabel Luu 1I
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Re: Exothermic example

Postby Isabel Luu 1I » Fri Jan 22, 2021 12:01 pm

An exothermic reaction releases heat. An endothermic reaction needs heat. The engine is exothermic because the reaction will give off heat as a product of the combustion reaction.

Akash J 1J
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Re: Exothermic example

Postby Akash J 1J » Fri Jan 22, 2021 12:08 pm

Megan Verschuur 1C wrote:From the sapling week 3 questions:
Why is a car using gasoline an example of an exothermic reaction?


You can also think about it this way. You need energy to run your car, so you use gasoline. Gasoline (as a hydrocarbon) is combusted in small quantities in order to power your car. Whenever combustion happens, it is almost always going to be exothermic.

aashmi_agrawal_3d
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Re: Exothermic example

Postby aashmi_agrawal_3d » Fri Jan 22, 2021 3:41 pm

When a car is running, it gives off heat since there is a combustion reaction.

Jiapeng Han 1C
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Re: Exothermic example

Postby Jiapeng Han 1C » Fri Jan 22, 2021 8:29 pm

Burning gasoline releases heat so it is an exothermic reaction!

Jiayi Wu 3J
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Re: Exothermic example

Postby Jiayi Wu 3J » Fri Jan 22, 2021 8:56 pm

All combustion reactions are exothermic reactions. During a combustion reaction, a substance burns as it combines with oxygen. When substances burn, they usually give off energy as heat.

Ariel Guan 1H
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Re: Exothermic example

Postby Ariel Guan 1H » Sat Jan 23, 2021 12:35 am

when a car uses gasoline, a combustion rxn occurs, so heat is given off, and it is exothermic.

Tanner Bartyczak 1K
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Re: Exothermic example

Postby Tanner Bartyczak 1K » Sat Jan 23, 2021 2:14 am

Energy (heat) is being released from the gasoline through combustion to give the engine power.


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