comment 'the energy change helps in the formation of decomposition of compounds'
Answers
Answer:
Learning Objective
Describe the types of energy changes that can occur in chemical reactions
Key Points
Chemical reactions often involve changes in energy due to the breaking and formation of bonds.
Reactions in which energy is released are exothermic reactions, while those that take in heat energy are endothermic.
Terms
exothermicA description of a chemical reaction that releases heat energy to its surroundings.
endothermicA description of a chemical reaction that absorbs heat energy from its surroundings.
enthalpyIn thermodynamics, a measure of the heat content of a chemical or physical system. The change in enthalpy of a chemical reaction is symbolized as ΔH.
Due to the absorption of energy when chemical bonds are broken, and the release of energy when chemical bonds are formed, chemical reactions almost always involve a change in energy between products and reactants. By the Law of Conservation of Energy, however, we know that the total energy of a system must remain unchanged, and that oftentimes a chemical reaction will absorb or release energy in the form of heat, light, or both. The energy change in a chemical reaction is due to the difference in the amounts of stored chemical energy between the products and the reactants. This stored chemical energy, or heat content, of the system is known as its enthalpy.
Explanation:
Thermal decomposition irt,s answer