Created
May 22, 2013 08:50
-
-
Save dmertl/5626172 to your computer and use it in GitHub Desktop.
Balloon calculation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Weight difference: 3g | |
Aprox balloon weight: 1g | |
Total lift = 3g + 1g = 4g | |
Weight of air at STP: 1.20g/L | |
Weight of He at STP: 0.18g/L | |
He lift at STP = 1.2g/L - 0.18g/L = 1.02g/L | |
Volume of He = 4g / 1.02g/L = 4L | |
P * V = n * R * T | |
100kPa * 4L = n * 8.314LkPa/Kmol * 293K | |
n = 0.16mol |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment