Endothermic reaction describes
a process which absorbs thermal (heat) energy.
∆H = positive
Products contain more energy
than the reactants. E2 > E1
Heat energy is absorbed from
the surroundings and is converted to chemical energy during the reaction. This
increases the energy contents of the products.
Total heat energy given out
during the formation of chemical bonds < Total heat energy absorbed during
the breaking of chemical bonds.
Temperature of the
surroundings decreases i.e. the reacting mixture becomes cold.
