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It provides energy to overcome the activation energy.

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8y ago
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11y ago

Firstly: any chemical reaction need to get over energy barrier in the form of Activations energy.

After that products of reaction can have lower or higher energy than substances. If products have higher energy, the reaction is endothermic and heating it will speed up the reaction. If products have lower energy than substances, heating will make the reaction slower.

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12y ago

According to the collision theory, a reaction occurs by the collision among the reactant molecule. When we increase the teamperature the chaoticness or randomness increases. Thats for why more collision among reactan molecule occurs and rate of reaction increases.

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12y ago

Heat accelerates the rate at which molecules move, thus increasing the rate at which the molecules will collide and perform chemical reactions.

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Q: Why does heat speed up a chemical reaction?
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Related questions

When heat is increased does the chemical reaction speed up?

The effect of heat on a chemical reaction will depend on whether the chemical reaction is exothermic (producing heat), or endothermic (requiring an input of heat). If the reaction is endothermic, then adding heat will increase the speed, but the opposite is true for an exothermic reaction.


Is bread baking chemical or physical?

Classify it as chemical, the heat is used mainly to speed up the reaction.


What method will speed up a chemical reaction?

Heat or ignition, even ingestion sometimes


What effect does the addition of heat usually have on the rate of a chemical reaction?

The addition of heat stimulates the molecules in the reaction. Because they will move faster, the reaction will speed up.


You are making a new chemical but the reaction rate is really slow if you heat the reaction will most likely?

Speed Up


Is baking bread physical or chemical change?

Classify it as chemical, the heat is used mainly to speed up the reaction.


What things will slow down or speed up a chemical reaction such as between vinegar and baking powder?

Heat would speed up the reaction, while cold would slow the reaction.


What is lowered to speed up a chemical reaction?

Activation energy is lowered to speed up a chemical reaction.


What can speed up a chemical reaction by decreasing?

chemical reaction


What is chemical reaction in an enzyme?

to speed up a chemical reaction


What helps speed a chemical reaction?

A catalyst is a substance that speeds up a chemical process without actually changing the products of reaction.


What can a chemical reaction be speeded up by?

A catalyst can speed up a chemical reaction.