What happens when a piece of hot metal is dropped in room temperature water. Over time the metal will cool and the water will heat up. Eventually the two objects will have the same temperature. They are then said to be in thermal equilibrium with one another.
Combustion reaction occurs when organic compound reacts with oxygen to form CO₂, H₂O and energy C(s) + O₂(g) → CO₂(g) is Synthesis reaction not combustion 2 H₂(g) + O₂(g) → 2 H₂O(g) also Synthesis reaction and not combustion C₃H₈(g) + 5 O₂ → 3 CO₂(g) + 4 H₂O(g) is considered as Combustion reaction 2 C₃H₇OH(l) + 9 O₂(g) → 6 CO₂(g) + 8 H₂O(g) Combustion reaction
