Hello everyone and thanks for stopping by to learn about Exothermic and Endothermic Reactions!
Why you should understand Exothermic and Endothermic Reactions:
Exothermic and Endothermic reactions give powerful insight into the movement of heat during a chemical reaction. Exothermic and Endothermic processes are present all over in our everyday lives.
Main Ideas
- What is an Exothermic Process
- What is an Endothermic Process
- Examples
What is an Exothermic Process
An exothermic process is one that gives off heat. This means an object or chemical reaction that is exothermic will feel hot to the touch. Below I've drawn some examples of exothermic reactions.
Matches are an example of an exothermic reaction. When you strike the match, a chemical reaction occurs which produces heat in the form of fire.
Your car undergoes an exothermic reaction when it burns gas to create the energy to move your car. Burning gas is a combustion reaction. If you feel the hood of you're car it would feel warm to the touch because of the exothermic reaction occurring in your engine.
What is an Endothermic Process
An endothermic process is one that takes in heat. Objects which undergo endothermic reactions will feel colder than the environment around them. Below I've drawn some examples of endothermic reactions.
Ice is an example of an endothermic substance because it's colder than the area around it. Ice takes heat in which is what causes it to melt. The cold water of lake superior also takes in heat from the environment, specifically the sun.
Examples
Here are four more examples of endothermic and exothermic reactions.
Ice tea in the hot sun is an endothermic reaction because the cold ice tea warms up from the hot sun. This means the Ice tea is taking in heat.
Photosynthesis is an endothermic reaction because heat from the sun is taken in by the plants.
Using a heat pack to warm your hands is an exothermic reaction because the heat pack is giving off heat.
If you touch a baking soda volcano, you'll notice that it feels cool to the touch. This means that a baking soda volcano is an endothermic reaction because it feels cooler than the surrounding area.
I hope you've found this post on Endothermic and Exothermic reactions helpful. If you have any questions feel free to comment on this post, email me, or comment on the video I've linked below.
- Saren
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