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Any substance when undergoes a phase change heat is either absorbed or released The reaction in which heat is absorbed known as an endothermic reaction and in which the heat energy is released, is known as exothermic reaction. DKK

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Q: What has got more or less energy between endothermic and exothermic?
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Contrast endothermic and exothermic reactions?

Endothermic reactions are chemical reactions that use heat as part of the reactant. Heat is absorbed into the reaction in order for it to continue. Exothermic reactions are chemical reactions that release heat as a product of the reaction.


Endothermic and exothermic reaction?

An exothermic reaction releases energy, usually to the surroundings. There is a net loss of energy from the reactants. However, exothermic reactions also need a little energy to get started, but this is less than the eventual amount given out. An endothermic reaction takes in energy, also usually from the surroundings. There is a net gain of energy into the reactions. Again, a little energy is lost, but this is hardly anything compared to the amount taken in.


Is bond making exothermic or endothermic?

Bonds are both broken and made in an exothermic reaction, but in the end, the potential chemical energy of the products is less than the potential chemical energy of the reactants.


How do endothermic and exothermic differ?

Exothermic reactions release energy (usually as heat) into the surrounding environment - endothermic reactions absorb energy from the surrounding environment. Note that exothermic reactions are capable of turning into runaway reactions as the heat of reaction often speeds up the rate of reaction (releasing more heat, etc). Endothermic reactions are, usually, self moderating as a limited amount of energy is capable of being drawn from the surrounding environment.


Does a catalyst make a reaction exothermic?

I honestly think it would because a catalyst lowers the activation energy, the amount of energy needed to complete the reaction. Since the activation energy is lower, it is absorbing less energy. I guess if its becoming less endothermic, its becoming more exothermic. Hope this helped!

Related questions

Contrast endothermic and exothermic reactions?

Endothermic reactions are chemical reactions that use heat as part of the reactant. Heat is absorbed into the reaction in order for it to continue. Exothermic reactions are chemical reactions that release heat as a product of the reaction.


Endothermic and exothermic reaction?

An exothermic reaction releases energy, usually to the surroundings. There is a net loss of energy from the reactants. However, exothermic reactions also need a little energy to get started, but this is less than the eventual amount given out. An endothermic reaction takes in energy, also usually from the surroundings. There is a net gain of energy into the reactions. Again, a little energy is lost, but this is hardly anything compared to the amount taken in.


Is bond making exothermic or endothermic?

Bonds are both broken and made in an exothermic reaction, but in the end, the potential chemical energy of the products is less than the potential chemical energy of the reactants.


How do endothermic and exothermic differ?

Exothermic reactions release energy (usually as heat) into the surrounding environment - endothermic reactions absorb energy from the surrounding environment. Note that exothermic reactions are capable of turning into runaway reactions as the heat of reaction often speeds up the rate of reaction (releasing more heat, etc). Endothermic reactions are, usually, self moderating as a limited amount of energy is capable of being drawn from the surrounding environment.


What is a type of chemical reaction where the energy of the products is less than the energy of the reactants?

When a reaction has products that have a lower temperature than the reactants did, the reaction is endothermic.


Does a catalyst make a reaction exothermic?

I honestly think it would because a catalyst lowers the activation energy, the amount of energy needed to complete the reaction. Since the activation energy is lower, it is absorbing less energy. I guess if its becoming less endothermic, its becoming more exothermic. Hope this helped!


What are differences between endothermic and exothermic reactions examples?

The main differences between exothermic reactions and endothermic reactions are: Exothermic reactions are reactions that give off energy (light, electrical or mainly heat), causing the surroundings to warm up. Endothermic reactions are reactions that absorb energy, causing the surroundings to cool down. The products of an exothermic reaction have less energy, or less total enthalpy, than of it's reactants. This is due to the reactants containing more stored energy because energy from external sources is not required. This also gives the products more stability because in order to achieve a reversible reaction and break the chemical bonds of the products, you will need to apply more energy to it. The opposite is for endothermic reactions. The products of the reaction have a greater total enthalpy of the reactants, causing the reactants stored energy to decrease. This produces less stable products that need less energy to break their bonds in a reversible reaction. Finally most exothermic reactions are spontaneous, where as most endothermic reactions are not spontaneous as they generally need energy applied to them before they start.


What type of reaction is it when energy is released?

Exothermic, generally. Exo- is out, -thermic refers to heat energy. You could have an endothermic reaction with other energy released, say radiation or work, but it is less common.


What happens to the reaction during endothermic and exothermic reaction?

During an endothermic reaction, heat is absorbed from the surroundings, causing the reaction to feel cold. The reactants have less energy than the products, so energy is absorbed to form the products. In an exothermic reaction, heat is released into the surroundings, making the reaction feel hot. The reactants have more energy than the products, so energy is released during the reaction.


What is an exothermic reaction?

An exothermic reaction is a chemical reaction that is done by the release of heat. It gives out energy to its surroundings. The energy needed for the reaction to occur is less than the total energy released.


Does an exothermic reaction contain more chemical energy than reactants?

depends , if the reaction is endothermic or exothermic. if the reaction is endothermic , the energy needed to break the bonds is greater than the energy that forms bonds.and to break bonds you need thermal energy , meanwhile forming bonds gives off energy. now if the reaction is exothermic the energy given off the bonds form are greater than the enrgy needed to break them. you know if the reaction is exothermic or endothermic because exothermic have a negitave delta next to d eqn.while endothermic have a positive delta.


Would you expect bond formation to be an energy-releasing process or an energy-absorbing process?

Bond formation is a energy releasing process that means exothermic process.you can calculate these energy by knowing enthalpy change .If energy stored in the product is less then the energy stored in the reactant ,the process is known as exothermic whereas if energy stored in the product is more then the energy stored in the reactant ,the process is known as endothermic.