0
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.
Wiki User
∙ 11y ago
Wiki User
∙ 11y agoWell it all depends. Certain decomposition reactions (and by that I think you mean a compound breaking down into elements) are endothermic (as we would expect them to be, with the need of energy to be absorbed to break the bond) but others are quite exothermic. If you had to ask me, the first thing I would check would be the sign on the (delta)H. If the sign is (-), then the reaction is exothermic (think of it this way, energy being released, so it is subtracting -). If the sign is (+) then it would be endothermic (same concept as above). If the question doesn't specify, I assume they are looking for a generalized answer based on your simple logic of endothermic and exothermic reactions, and what a decomposition reaction looks like, and so the answer for that would be endothermic.
Wiki User
∙ 15y agoDeposition is phase change Gas to Solid. Heat is EXited, therefore, EXothermic reaction.
Wiki User
∙ 8y agoRotting wood is exothermic. I cannot think of an endothermic decomposition, but that doesn't mean they don't exist.
Wiki User
∙ 8y agoDeposition (as a phase change) ix exothermic.
Wiki User
∙ 11y agoDeposition is exothermic.
Wiki User
∙ 11y agoExothermic
Wiki User
∙ 11y agoWhaa?
Issa Abu Sharar
What
Anonymous
All thermal decomposition reactions are endothermic.
Add your answer:
Earn +20 pts
What is an example of an endothermic chemical change?
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
What pure substance can be broken down by heat?
Carbon into carbon monoxide and carbon dioxide
What is thermal decomposition?
in English it is basically breaking something down using heat --------------- Thermal decomposition is a chemical reaction of decomposition under the effect of high temperature: the compound breaks down into other substances when it is heated. For example: copper(II) sulfide when heated produces copper + sulfur dioxide
Salt dissolved in water would be an example of what?
Water is a product of burning, neutralization reaction, thermal decomposition, etc.
Is NH4NO3 N2O H2O a disproportionation reaction?
This is a thermal decomposition reaction.
Chemical reaction in which heat is absorbed?
It is an endothermic reaction. An example is thermal decomposition.
How would you know if a reaction was endothermic or exothermic?
An endothermic reaction is one in which thermal energy, or heat, is absorbed. If heat is absorbed in the reaction process, it is endothermic. By monitoring the temperature of the reactants in a reaction, an observer could identify an endothermic reaction through observation of a decrease in the temperature.
If thermal energy must be added to a chemical reaction for the reaction to take place the reaction is a Exothermic b Reactant c Balanced d Endothermic?
If thermal energy must be added to a chemical reaction for the reaction to take place the reaction is endothermic.
Will the temperature in a reaction always go up?
Exo- means out Endo- means in. In an Exothermic reaction thermal energy is released (goes out) and in an Endothermic reaction Thermal energy is taken up, transferring into chemical energy (goes in). So, to answer your question, no, the temperature does not go up in both an exothermic and an endothermic reaction.
Is burning sugar endothermic?
Endothermic means absorbing thermal energy, so of course not. There is no such thing as sugar getting cold when it's burning. Burning sugar is exothermic, meaning it releases heat.
What is a chemical reaction that doesn't releases energy?
A chemical reaction that doesn't release energy is an endothermic reaction. There are few reactions that are endothermic compared to exothermic reactions (reactions that release energy as heat). Endothermic reactions actually take in heat from the environment and that is why you see a temperature drop. Examples of endothermic reactions: Electrolysis A reaction between ethanoic acid and sodium carbonate A thermal decomposition reaction (as you put heat into the reaction to break something down) Hope this helped.
If heat must be added to a chemical reaction for the reaction to take place the reaction is?
Endothermic reactions need heat. Exothermic reactions give off heat.
What is the thermal decomposition of sodium carbonate?
The thermal decomposition of sodium carbonate is a chemical reaction according to the equation: Na2CO3 -> Na2O + CO2. The reaction is endothermic and therefore proceeds rapidly in the direction shown only in an environment from which ample heat energy can be absorbed.
What is a sentence for the term endothermic reaction?
When you heat calcium carbonate, to make it under go thermal decomposition, this is an endothermic reaction, because you are driving heat into the calcium carbonate.
Why is decomposition of vegetable matter into compost considered to be exothermic?
This is because, all thermal decomposition ( and all decomposition processes ) is an exothermic process. Well, if you need a full explanation, here goes. More energy is given off to form bonds then taken in to break bonds hence it is an exothermic reaction. Also, decomposition gives off heat energy.
What is the decomposition reaction occurs in the presence of heat,?
Thermal decomposition is a chemical reaction where a single substance breaks into two or more simple substances when heated. The reaction is usually endothermic because heat is required to break the bonds present in the substance.
How can endothermic and exothermic reactions work alike?
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.
