Determine the root-mean-square velocity of nitrogen molecules if the concentration of molecules
| December 26, 2020 | education
Determine the root-mean-square velocity of nitrogen molecules if the concentration of molecules is 2 * 10 ^ 26 m3 at a pressure of 830 kPA.
Using the basic MKT formula p = (n * m * u ^ 2) / 3,
We get u ^ 2 = 3p / (n * m)
u ^ 2 = 830,000 * 3 / (2 * 10 ^ 26 * 4.65 * 10 ^ -26) = 267642
Answer: 267642 (this is the mean square velocity)
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