00:02
Question number eight, they want us to discuss what is meant by the term ideal gas.
00:13
First of all, what is an ideal gas? it is actually a hypothetical gas.
00:28
It actually does not exist.
00:31
It's a hypothetical gas that has no interactions between the molecules of the gas.
00:39
So they won't be attracted to each other.
00:42
They won't be repelled from each other.
00:43
There will be no interactions.
00:48
Between the particles.
00:54
Another thing is that the particles are moving quickly and are spread far apart.
01:00
You're an ideal gas.
01:02
They are so far apart that the volume of the gas particles themselves is negligible, so we refer to them as being dimensionless points.
01:21
That would be like saying you take a bb and you put it on the 50 -yard line of a football stadium.
01:28
The size of that bb would be negligible compared to the size of the entire football stadium.
01:35
So we would think about that bb's volume as being dimensionless, really.
01:39
He said dimensionless point when compared to the entire volume of the stadium.
01:44
So that's the same thing with these gas particles.
01:46
We can think of them as being dimensionless points.
01:49
So these are all ideal gases.
01:51
And again, i said these were ideal.
01:54
They are not, or they're hypothetical...