00:01
In the given question, we have been provided a sample that contains 2 .50 moles of helium.
00:07
Okay.
00:08
So, helium moles are 2 .50.
00:10
It also contained neon whose moles are 1 .75.
00:14
And it also contains argon whose moles are 1 .5.
00:20
The temperature is 350 kelvin.
00:24
Okay.
00:26
And the pressure is one bar for all three gallons.
00:30
We have been asked the value when all these three gases are mixed, the value of what is the value of delta g and what is the value of delta as mix.
00:40
Okay.
00:41
So for delta g mixing, the formula is delta g mix is given as nrt summation mole fraction into ln of mole fraction.
00:55
Okay.
00:56
So xi is mole fraction.
00:58
Okay x i is mole fraction and i are the components okay and the mole fraction for any element a will be equals to the moles of a divided by total moles in the mixture okay so we can calculate our value of r we will be using will be 8 .314 jule kelvin inverse mole inverse okay and so we have to calculate delta g mix okay so here n will be the total mole.
01:30
So, total mole will be the sum of all three moles of these gases.
01:35
So, n total is 5 .75.
01:40
Now put the value of n total as 5 .75, r is 8 .314, temperature is 350...