Exothermic (hyperthermic) reaction: a chemical reaction that releases energy,*
Endothermic (hypothermic) reaction: a chemical reaction that absorbs energy.*
* Energy = heat, light, etc.
The direction of Heat transfer:
Exothermic reactions transfer heat energy to the environment.
Endothermic reactions transfer heat energy from the environment .
An exothermic reaction is one which takes place with release of heat.
An endothermic reaction is one which can only take place when heat is absorbed.
exothermic reactions give off heat. endothermic reactions require heat to accomplish the reaction.
Thedecompositionof water is endothermic since energy is required to break up the bonds between the hydrogen and oxygen in the water molecule. Therefore the decomposition of water absorbs energy, making the reaction an endothermic one.
Beacuse when you release energy out of your body or somthing, somthing has to take in the energy so absorbing;SO, it's like a chain reaction you release somthing els takes in, like humans breath oxygen plants breath our carbon dioxide and plants give us oxygenSo, it differs because when energy-realses somthing needs to take that energy in as in absorbing
An endothermic reaction is one that requires energy to take place (e.g. light or heat energy); breaking bonds in a molecule is always endothermic; and energy is a reactant.Some examples of endothermic reactions are as follows:citric acid and sodium bicarbonate.ammonium chloride and watera chemical cold pack used in first aid kitsphotosynthesisbioluminescence by a firefly
One is caused by an allergic reaction, one is caused by a virus
we get chemical energy from food.but they are expressed in calories.two persons misread the questions i think.ok,see about the chemical energy. The energy held in the covalent bonds between atoms in a molecule is called chemical energy. Every bond has a certain amount of energy. To break the bond requires energy -- in chemical language it is called endothermic. These broken bonds then join together to create new molecules, and in the process release heat -- chemists call this exothermic. If the total heat given out is more than the heat taken in then the whole reaction is called exothermic, and the chemicals get hot. The burning of methane in oxygen is an example of this. If the heat taken in is more than the heat given out then the whole reaction is endothermic and the chemicals get cold. Combining carbon and hydrogen to make methane is an example. We rarely meet such reactions in every day life. They happen in living cells, the energy being supplied by sunlight or some other source. ATP is the molecule used by life to carry chemical energy. The bond between two of its phosphate groups carries a lot of energy because both phosphates have negative electric charge.
The difference between endothermic and exothermic energy is that exothermic energy is the reaction that releases energy and endothermic is the reaction in ehich energy is absorbed.
You can generally tell by changes in temperature, whether you have an exothermic reaction which produces heat, or an endothermic reaction which consumes heat.
An endothermic reaction absorbs heat. It cannot proceed without the addition of heat. An exothermic reaction releases heat. Since heat causes chemical reactions to go faster, an exothermic reaction can "feed on itself" and get out of control, releasing damaging amounts of heat and, if proceeding in a closed container, causing an explosion.
energy released by the reaction or energy absorbed.
Exothermic reaction is just one of the two possible chemical reactions: either exothermic or endothermic. (No difference but heat release)
This is a strong exothermic reaction.
Exothermic
EXTREMELY!!!!! exothermic. As in fires and explosions exothermic.
Nothing to explain; that is the way EXO- and ENDOthemic reactions are called by definition
Endothermic
An endothermic reaction absorbs energy, making its environment cooler. Ab exothermic reaction releases energy, making its environment warmer.
endothermic because it absorbs energy, and not releasing it