00:01
To determine the heat of combustion of ethane, we first need a balanced chemical reaction.
00:07
C2h6, as a gas, reacts with oxygen as a gas to produce in a combustion reaction, carbon dioxide, and water.
00:20
They don't tell us whether or not the water is a liquid or a gas, so i will assume it's a gas.
00:27
To balance this, we need two carbon dioxide, so we have two carbons.
00:31
We need three waters, so we have c2.
00:34
Six hydrogens.
00:37
That then gives us four plus three seven oxygens.
00:41
To get seven out of two, we multiply by seven halves.
00:47
We'll keep the fraction because they want us to calculate delta h of combustion for one mole of ethane...