# Propane, C_3H_8, is frequently used in camping stoves. When propane undergoes combustion, what are the products formed?

${C}_{3} {H}_{8} \left(g\right) + 5 {O}_{2} \left(g\right) \rightarrow 3 C {O}_{2} \left(g\right) + 4 {H}_{2} O \left(g\right) + \Delta$
What does the $\Delta$ symbol represent in the given reaction? It too may be quantitatively measured and predicted.