# What is a balanced equation for the combustion of gaseous ethane (C_2H_6), a minority component of natural gas, in which it combines with gaseous oxygen to form gaseous carbon dioxide and gaseous water?

Nov 3, 2016

#### Answer:

${C}_{2} {H}_{6} \left(g\right) + \frac{7}{2} {O}_{2} \left(g\right) \rightarrow 2 C {O}_{2} \left(g\right) + 3 {H}_{2} O \left(g\right)$

#### Explanation:

You can double the equation if you like; either equation shows that 1 equiv of ethane reacts with 7/2 equiv dioxygen gas to give 2 equiv carbon dioxide and 3 equiv of water.

How does energy transfer in the reaction. Is it exothermic or endothermic?