Exothermic Process

Process that gives off heat, transfers thermal energy from the system to the surroundings

Examples §

2H (g) + O (g) -> 2HO (l) + energy

HO (g) -> HO (l) + energy

In an exothermic reaction:

• The reaction vessel warms
• Heat is evolved (released)
• Energy is released by the system
• q is negative