Calculate the root-mean-square velocity for the O₂ molecules in a sample of O₂ gas at 28.3°C.(R = 8.3145 J/K⋅mol) A)15.33 m/s B)148.5 m/s C)279.8 m/s D)484.6 m/s E)9.229 × 10²⁶ m/s

Question

Quizplus · Accepted Answer

The root-mean-square velocity (v_rms) is calculated using the formula v_rms = sqrt(3RT/M), where R is the gas constant (8.3145 J/K⋅mol), T is the temperature in Kelvin (28.3°C = 301.45 K), and M is the molar mass of O2 in kg/mol (0.032 kg/mol). Plugging in these values gives v_rms ≈ 484.6 m/s.

Calculate the Root-Mean-Square Velocity for the O2 Molecules in a Sample

Calculate the Root-Mean-Square Velocity for the O₂ Molecules in a Sample