Endothermic Reaction
- Endothermic reaction is a chemical reaction that absorbs heat from surroundings.
- When energy is taken from the surrounding during a chemical reaction, the temperature of the surrounding will decrease.
Example of Endothermic Reaction
| Decomposition of carbonate metal by heat | Decomposition of calcium carbonate by heat CaCO3 → CaO + CO2 |
| Decomposition of nitrate metal by heat | Decomposition of Lead Nitrate by Heat 2Pb(NO3)2 → 2PbO + 4NO2 + O2 |
| Dissolve potassium nitrate, ammonium nitrate or ammonium chloride in water. | KNO3 + Water → K+ + NO3– NH4NO3 + Water → NH4+ + NO3– NH4Cl + Water → NH4+ + Cl- |
| Reaction of heat on hydrated copper(II) sulphate. | CuSO4•xH2O → CuSO4 + xH2O |
Others
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