00:01
Here we know that for part a, the percent relative humidity is equaling the vapor density divided by the saturated vapor density multiplied by 100%.
00:17
And so we can evaluate at 30 degrees celsius to find the vapor density.
00:22
This would be equal to the percent relative humidity on that day, 80 percent, multiplied by the saturation vapor density of water at 30 degrees.
00:34
Celsius, this is equaling 30 .4 grams per cubic meter.
00:39
So the vapor density is equaling 24 .32 grams per cubic meter.
00:47
Now for 25 degrees celsius we can find the percent relative humidity.
00:56
This would be equaling the vapor density, which we know to be again 24 .32 grams per cubic meter divided by the saturated vapor density at 25 degrees celsius for water, which is 23 grams per cubic meter.
01:14
And this would be times 100 % again.
01:17
And we have that this is equaling 105 .7%.
01:21
So the percent relative humidity for 25 degrees celsius is 105 .7%...