An endothermic change requires heat, and an exothermic change releases heat.
The terms "endothermic" and "exothermic" refer to whether a chemical reaction absorbs or releases heat, respectively. In an endothermic reaction, heat is absorbed from the surroundings, while in an exothermic reaction, heat is released into the surroundings.
Freezing is exothermic, as the substance that is freezing loses energy to its surroundings.
The opposite of exothermic is endothermic. Exothermic reactions are those which give off energy in the form of heat. Endothermic reactions require energy.
You can determine if a reaction is endothermic or exothermic by observing the temperature change of the surroundings. In an exothermic reaction, heat is released, causing the temperature of the surroundings to rise, while in an endothermic reaction, heat is absorbed, leading to a decrease in the temperature of the surroundings. Additionally, you can analyze the enthalpy change (ΔH); a negative ΔH indicates an exothermic reaction, while a positive ΔH indicates an endothermic reaction.
it is an endothermic
It is an exothermic change
An endothermic change requires heat, and an exothermic change releases heat.
Any reaction categories into exothermic and endothermic based upon change in enthalpy of reaction. If difference in enthalpy of product and reactant comes positive value then it is termed as endothermic and if it is negative value then exothermic reaction. Usually, vaporisation is considered as exothermic due to release in energy.
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.
endothermic change
A solid is itself neither endothermic or exothermic. However the phase change from liquid to solid will likely be exothermic.
The terms "endothermic" and "exothermic" refer to whether a chemical reaction absorbs or releases heat, respectively. In an endothermic reaction, heat is absorbed from the surroundings, while in an exothermic reaction, heat is released into the surroundings.
Endothermic reactions and exothermic reactions all involve something called an enthalpy change: a change in the amount of energy a chemical contains. The difference here is that exothermic reactions release heat energy to their surroundings, whereas endothermic reactions absorb heat from their surroundings (in effect, getting colder).
Burning a match is an exothermic change because energy is being released.
Anions are not associated with either exothermic or endothermic processes on their own. The classification of a process as exothermic or endothermic depends on the overall energy change of the reaction in which the anion is involved.
Freezing is exothermic, as the substance that is freezing loses energy to its surroundings.
You can generally tell by changes in temperature, whether you have an exothermic reaction which produces heat, or an endothermic reaction which consumes heat.