Determine the average speed of carbon dioxide molecules at 0 degrees Celsius?
| February 4, 2021 | education
Task data: Т (absolute temperature) = 273 К = 0 ºС.
Constants: R (universal gas constant) = 8.31446 J / (K * mol); MCO2 (molar mass) = 0.04401 kg / mol.
The root-mean-square velocity of CO2 molecules is calculated by the formula: Vav = √ (3R * T / MСО2).
Calculation: Vav = √ (3 * 8.31446 * 273 / 0.04401) = 393.4 m / s.
Answer: CO2 molecules, according to the calculation performed, have a mean square velocity equal to 393.4 m / s.
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