Essential Chemistry for IGCSE - Chemical Changes (Section 1 - No. 29)
Which of the following is true regarding endothermic reactions?
Heat is released.
The temperature decreases.
The energy of the products is higher than that of the reactants.
The enthalpy change is positive.
Explicació
Endothermic reactions require energy to be absorbed, so the products have more energy than the reactants, and ΔH is positive.