00:01
We'd like to calculate the humidity ratio in this problem.
00:07
So we're given a few different data.
00:09
Let's first convert our temperature to degrees celsius, so that's two, or degrees kelvin.
00:14
That's 296 kelvin.
00:16
We're given a pressure of 100 kpa, our volume of 200 meters cubed, and our percentage as 70%.
00:25
Now we can calculate our saturation temperature.
00:31
Well, we first want to calculate phi.
00:34
Phi is pv over p saturated.
00:36
So pv is going to be our 0 .70 % times 2 .81 kpa.
00:45
So we get 1 .96 kpa.
00:49
Now we can calculate our humidity ratio, w.
00:53
That's going to be our 0 .622 times this pv over p minus pv...