00:01
So there's a lot to grasp.
00:03
We should just first, just let's define these processes.
00:08
So we have n.
00:11
We have 1 .75 mole.
00:13
And again, it's a monotomic ideal gas.
00:20
So this would most likely be a gas from group 18, the noble gases.
00:26
They can exist, rather they can exist by themselves.
00:31
They don't need to be bonded to one another.
00:34
Therefore, they are considered a monotomic one atom, ideal gas.
00:40
For process a, we can say that pressure sub 1 equals pressure sub 2, and this is going to equal 425 newtons per meter squared.
00:53
We can say that the volume sub 1 is going to equal 2 meters cubed, and then the volume sub 2 will equal 8 meters cubed.
01:06
For process b, we have two -step.
01:09
This is a two -step process.
01:11
So we first have an isothermal expansion.
01:15
Again, temperature doesn't change.
01:17
That's what isothermal means, an expansion.
01:19
This means that the volume is increasing.
01:23
However, it's isothermal.
01:26
So that means that pv is going to equal a constant.
01:31
Because again the number of moles in this gas of course does not change.
01:37
So this would be from state 1 to v2, so the second volume.
01:48
And then the second step would be an isochoric, isochoric meaning constant volume.
01:54
So this would be an isochoric increase in temperature to state.
02:09
And again, this will be a two -step process for the process b.
02:13
So now they're asking us to, first of all, part a is asking us to draw.
02:20
So let's get a new workbook and say that we have pressure here.
02:31
This is going to be in terms of newton per meters squared.
02:36
And then we have a volume here in cubic meters.
02:40
And we'll just put some quantities, two, four, six, eight.
02:47
So we can just say two, four, six, eight for that.
02:51
And then we can have 100, 200, 300, 400.
02:58
Yeah, so 100, 200, 300.
03:04
So we first have two, a volume, an initial volume of two cubic meters, and then initial pressure of 400 newton per meter squared.
03:16
So 425 rather.
03:17
So 425 would occur just above 400.
03:21
So we can just say right here approximately.
03:24
And then we're, this is an isobaric process.
03:28
So temperature does not change.
03:30
And we're expanding from 2 to 8 cubic meters.
03:34
So it's about here.
03:36
And we can just draw a line, draw an arrow.
03:41
And then we can label this a.
03:45
So this is all we know at this point...