Santos9536 Santos9536
  • 23-11-2017
  • Chemistry
contestada

The rms speed of the molecules of a gas at 139°c is 181 m/s. calculate the mass of a single molecule in the gas.

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W0lf93
W0lf93 W0lf93
  • 02-12-2017
Answer: RMS = sqrt 3RT/M R is gas constant in (kg·m 2 /sec 2 )/K·mol; T is temp in K; M is molar mass in kg 181 m/s = sqrt (3)(8.314)(412)/M sqrt M = 0.55 M = 0.298 kg = 298 g
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