00:01
Hi, so the first question is we are to write the balance equation for the combustion reaction of butane c4h 10.
00:11
Okay, so we have c4h10.
00:15
This is mutine and we know that one of the reactors when we have a combustion reaction will be oxygen gas.
00:23
So there will always be ozu in combustion reaction.
00:27
And then the products formed, we have co2.
00:31
Let's write the states here.
00:35
This is gaseous space.
00:37
This is also gas.
00:38
This will form gase co2 and water, which is also in gaseousous space.
00:46
Okay.
00:47
So next is we'll balance this equation.
00:53
And the reactant side we have four carbon.
00:57
Okay, so we'll write here in co2, write four.
01:01
And then for hydrogen, we have here 10.
01:04
Then we have here two only.
01:06
So we need to.
01:06
Right here five okay let's meet this first and then let's balance the number of oxygen now for oxygen we now have four times two plus five so that's 13 okay so we need to write here 13 over two but the required answer is that all coefficients in the balance equation should be a whole number so we need to make 13 over 2 or the coefficient of oxygen gas a whole number.
01:43
And to do that, we'll just have to multiply both sides of the equation by 2.
01:48
Okay, so now let me write first, c4h10 plus o2, forming co2 and h2o.
02:02
These are the states.
02:07
Okay.
02:07
So now we'll have 2 here and then 13 over 2 multiplied by 2 that's going to be 13...