00:01
First of all, let's have a look what all is given in the problem.
00:05
Given is enthalpy of combustion of methane is given as minus 890 kilojoules and temperature is given as 0 degree celsius.
00:17
Pressure is given as 1 atm and it is asking the volume that is required to produce to burn 2670 kilojoule of heat.
00:31
It is asking the volume required to burn 2670 kilojoule of heat.
00:38
That means energy released is 2670 kilojoule.
00:46
What we are supposed to find out, we have to find the volume required to produce this much energy of heat.
01:01
We need to find the volume.
01:06
So first thing is that we should write the balance reaction for this.
01:11
Ch4 will react with o2 to form co2 plus h2o.
01:16
Now let's balance the reaction.
01:18
Oxygen is not balanced, so put 2 here.
01:21
Now this side is 4 oxygen atoms but this side is 3 only.
01:25
So put 2 here.
01:26
Now let's check the number of atoms on right -hand side is equal to left -hand side...