0
Exothermic reactions need activation energy to start, but they also need it to keep going to build up heat. At the end of the reaction, the products have less energy than the reactants. This produces heat. In order for this to happen, the exothermic reaction needs activation energy.
What else can I help you with?
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.
What type of chemical reaction cannot occurs spontaneously endothermic or exothermic?
An 'exothermic' reaction gives of energy, and an 'endothermic' reaction absorbs energy.
Why respiration is considered an exothermic reaction?
An exothermic reaction is one in which heat or energy is released, and that occurs in respiration. That is how the body uses respiration -- to get energy. If it were an endothermic reaction we would need to put energy into the process and not get energy out.
What kind of reaction is once started will continue by itself?
No. It requires an energy input (the activation energy) before it can proceed. For some reactions the energy needed can be as low as simply heat from the room and others need thousands of Watts of electrical power.
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.
A what is a reaction in which energy is absorbed?
Exothermic 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.
How do cells get the energy they need to live?
Through the exothermic reaction: C6H12O6 + 6O2 -> 6H2O + 6CO2
What type of chemical reaction cannot occurs spontaneously endothermic or exothermic?
An 'exothermic' reaction gives of energy, and an 'endothermic' reaction absorbs energy.
Why respiration is considered an exothermic reaction?
An exothermic reaction is one in which heat or energy is released, and that occurs in respiration. That is how the body uses respiration -- to get energy. If it were an endothermic reaction we would need to put energy into the process and not get energy out.
What kind of reaction is once started will continue by itself?
No. It requires an energy input (the activation energy) before it can proceed. For some reactions the energy needed can be as low as simply heat from the room and others need thousands of Watts of electrical power.
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.
Why does exothermic reactions need activation energy?
Even though exothermic reactions release energy overall, they still require an initial input of energy to overcome the activation energy barrier. This energy is needed to initiate the reaction by breaking the existing bonds in the reactant molecules. Once this barrier is crossed, the reaction proceeds spontaneously and releases energy in the form of heat.
How large would the lattice energy need to be for the formation of NaCl2 to be exothermic?
The lattice energy needed for the formation of NaCl2 to be exothermic would need to be larger than the energy required to break the bonds in Na and Cl2 and smaller than the energy released when the new Na-Cl bonds are formed in NaCl2. This would result in a negative overall enthalpy change for the reaction, indicating an exothermic process.
Can you Classify the following reactions as exothermic or endothermic?
Sure! To classify a reaction as exothermic or endothermic, you need to consider whether it releases or absorbs heat. An exothermic reaction releases energy to the surroundings, typically in the form of heat, causing a temperature increase. An endothermic reaction, on the other hand, absorbs energy from the surroundings, resulting in a temperature decrease. If you provide specific reactions, I can help classify them accordingly.
Do Exothermic reactions not require any activation energy.?
Exothermic reactions do require activation energy to initiate the reaction, even though they release heat once they proceed. Activation energy is the minimum energy needed for reactants to overcome the energy barrier and transform into products. Once this barrier is crossed, the reaction can continue and release energy in the form of heat. Thus, while exothermic reactions release energy overall, they still need some energy input to get started.
If the reaction gets hot is it an endothermic or an exothermic reaction?
The reverse reaction is not always endothermic or exothermic, the reverse reaction is the opposite of whatever the initial reaction is, so if the reaction is endothermic, the reverse reaction is exothermic and vise versa.
