Is kcal endothermic or exothermic?
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Is kcal endothermic or exothermic?
Because energy (45 kcal) is a reactant, energy is absorbed by the reaction. Therefore, this reaction is endothermic.
Is 2h2o2 –> 2H2O O2 endothermic or exothermic?
This is an EXOTHERMIC reaction.
Is Cl2 to 2 endothermic or exothermic?
For example 2Cl <—> Cl2. Just from this information we can deduce that the forward reaction is exothermic because the Cl molecules are binding and energy is produced when bonds are formed. Therefore, the reverse reaction is endothermic as it takes energy to break the Cl2 bond.
What are the examples of endothermic reaction?
Endothermic Processes
- Melting ice cubes.
- Melting solid salts.
- Evaporating liquid water.
- Converting frost to water vapor (melting, boiling, and evaporation, in general, are endothermic processes.
- Making an anhydrous salt from a hydrate.
- Forming a cation from an atom in the gas phase.
- Splitting a gas molecule.
Is dew formation endothermic or exothermic?
Condensation is an exothermic process, but in contrast to a bonfire, condensation is not so obviously exothermic because it does not release heat in a way that is easy to sense or observe. Objects in motion have kinetic energy related to this motion, and water molecules are no exception.
Is H2O L H2O S exothermic?
Exothermic; there is an increase in temperature. Freezing of water to form ice is represented by the following equation. H2O(l) → H2O(s) Exothermic; energy is released when bonds are being made between water molecules in the phase change.
What type of reaction is 2H2O2 2H2O O2?
disproportionation reaction
2H2O2 → 2H2O + O2 is an example of disproportionation reaction.
Is Cl2 CL endothermic?
Yes. All bond formations are exothermic. Two chlorine free radicals forming a bond is exothermic.
Is h2o endothermic or exothermic?
The reaction that forms water (from the elements it is composed of) is the combustion of hydrogen, which is clearly exothermic!