ENERGY CHANGES AND REVERSIBLE REACTIONS
ENERGY CHANGES AND REVERSIBLE REACTIONS: There are many types of energy among which heat energy is the most prominent in chemical reactions. · During a chemical reaction, there is always an energy change. Heat is either taken in or given out from/to the surroundings. · The reaction in which heat is taken in are known as endothermic reaction, in these the product has more energy than the reactants (due to absorption of heat energy). Endothermic reaction’s enthalpy change is represented by Positive(+) sign. · The reaction in which heat is given out is known as exothermic reaction, in these the products has lesser energy than the reactants (due to emission(loss) of heat to surroundings). Exothermic reactions enthalpy change is represented by negative(-) sign Ø Breaking Bonds takes in energy, B.B is endothermic. Ø Bond forming is exothermic, energy is released. · ...