00:01
Hello students, in this question we have to answer some questions about phase diagram of nitrogen.
00:05
So, phase diagram will contain two type of axes.
00:11
Let's consider this is our pressure axis and this is our temperature axis.
00:16
Now we have been told that a triple point exists in the phase diagram.
00:21
So, let's construct the phase diagram first.
00:25
This will be the phase diagram for nitrogen.
00:28
Now this triple point is observed at a temperature of 63 .1 kelvin and pressure of 0 .127 atmosphere.
00:46
On the basis of this phase diagram we have to answer some questions.
00:53
In the first part we have to tell vapor pressure of nitrogen at a temperature of 63 .1 kelvin.
01:01
So, we can say that at a temperature of 63 .1 kelvin pressure of nitrogen is 0 .127.
01:11
So, this will be the partial pressure of nitrogen at the given temperature.
01:17
In the second question we have been told that the sample of gas is heated from 5 kelvin to 300 kelvin at an external pressure of 0 .148.
01:38
We have to tell if the phase change will occur or not.
01:43
So, the pressure 0 .148 will exist somehow at the above value of 0 .127...