Answer:
In an endothermic reaction, the value of ΔH is always positive.
Endothermic reactions
- Endothermic reactions are chemical reactions in which the reactants absorb heat from the environment to produce products.
- These reactions cause a cooling effect by lowering the temperature of the surrounding region.
- When an endothermic reaction carried out at constant temperature and constant pressure the heat absorbed increases the enthalpy of the products, so the value of ΔH is always < 0.
