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Why do endothermic reactions need additional energy to keep going while exothermic reactions don't?
Wiki User
∙ 12y ago
Ipso facto. An endothermic reaction "absorbs" energy (uses it to create high-energy bonds), so this must be constantly supplied from an external source. An exothermic reaction "releases" energy, and this energy can be used to continue the reaction until there are no reactants remaining.
This is why stellar cores cannot fuse massive quantities of elements heavier than iron. The reactions are not self-perpetuating as they are absorbing energy rather than releasing it. A large, inert iron core is the result.
Wiki User
∙ 12y ago
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How is endothermic reactions differ from exothermic reactions?
Endothermic chemical reactions absorb more energy than they release, while exothermic chemical reactions release more energy than they absorb.
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.
A chemical reaction that releases energy is called?
Exothermic reactions
Two types of chemical reactions?
Two kind of chemical reactions are exothermic and endothermic reactions. An exothermic reaction is one that releases energy. An endothermic reaction is one that absorbs energy. Hope this helps!! :)
Which reactions requires or stores energy?
Endothermic reactions require energy while exothermic reactions release energy.
How are exothermic and exothermic reaction are different and how are they the same?
Endothermic and exothermic reactions are similar in that both have reactants and products. They are different in that exothermic reactions release energy through reacting and endothermic reactions absorb it.
A chemical reaction that requires a net input of energy?
"Activation Energy reactions"; Endothermic reactions require energy.
How is endothermic reactions differ from exothermic reactions?
Endothermic chemical reactions absorb more energy than they release, while exothermic chemical reactions release more energy than they absorb.
What is the opposite of exothermic?
The opposite of exothermic is endothermic. Exothermic reactions are those which give off energy in the form of heat. Endothermic reactions require energy.
A process or reaction which releases heat to the surroundings is said to be?
Reactions that require energy in the form of heat are called endothermic.
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 it true that an exothermic reaction absorbs heat and is categorized as dissipated energy?
Exothermic reactions release energy. Endothermic reactions absorb energy.
Chemical reactions that consume free energy are called?
These are endothermic reactions.
A chemical reaction that releases energy is called?
Exothermic reactions
How do endothermic exothermic reactions differ?
direction of energy flow
