Root Mean Square Speed of Gas Calculator
Posted by Dinesh onOnline chemistry calculator to calculate root mean square (RMS) speed of gas, using gas molecular mass value. The root-mean-square speed (u), is the square root of the average speeds of the molecules in a sample of gas at a specific temperature and pressure.
| Gas | Molar mass | root-mean-squar speed (u) (m/s) |
|---|---|---|
| H | 0.002 | 1966.27 |
| He | 0.004 | 1390.36 |
| H2 | 0.0028 | 1661.80 |
| O2 | 0.0032 | 1554.47 |
| CO2 | 0.0044 | 1325.66 |
Root Mean Square Speed Calculation
Formula:
u = [3 × R × T / M]1/2
where,R = gas constant, (8.3145 J×mol−1×K−1)
T = temperature
M = molecular mass