00:01
Hey there, welcome to numerate.
00:02
We are asked to find the enthalpy change for the reaction presented below.
00:08
So we are going to first write down the target reaction.
00:12
We have 2 as a coefficient of co2 in gas form, plus water, h2o also in gas form.
00:23
So this will react into c2h2 in gas form and plus, 5 halves, oxygen, and gas form.
00:35
So we're going to combine the given reaction uses hesse's law.
00:41
So we're going to apply hes law.
00:52
So knowing this, we are going to be looking at our first one as c2h2 plus 2h2, which will become c2h6.
01:09
Hence, we know that the change of entropy, the entropy change, which is going to be delta h, is going to be equivalent to punching this into calculator, negative 94 .5...