Chemistry
StefaniLines
2016-04-10 07:21:57
Find the rms speed of the molecules of a sample of n2 (diatomic nitrogen) gas at a temperature of 35.9°c.
ANSWERS
aileenkilby
2016-04-10 09:22:13

The root mean square velocity (RMS velocity) is a method to find a single velocity value for the particles. The average velocity of gas particles in a mixture is found using the root mean square velocity formula:  μrms = sqrt (3RT/M) Where, R = universal gas constant = 8.3145 (kg·m^2/s^2)/K·mol T = temperature = 35.9 ˚C = 309.05 K M = molar mass = 28 * 10^-3 kg / mol Substituting the given values into the equation: μrms = sqrt [(3 * 8.3145 (kg·m^2/s^2) /K·mol) * (309.05 K) / (28 * 10^-3 kg / mol))] μrms = sqrt (275,313.8813 m^2) μrms = 524.7 m / s                     (ANSWER)

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