Reactivity 1.1.2 – Exothermic and Endothermic reactions
📌 Definitions of endothermic and exothermic reactions
- Endothermic reactions occur when the system gains heat from the surroundings and the relative temperature of the surroundings decreases
- Exothermic reactions occur when the system loses heat to the surroundings and the relative temperature of the surroundings increases
⭐️ it is important to remember that the decrease and increase in temperature is always measured relative to the surroundings not the system