At What Temperature Would the Root-Mean-Square Speed (Thermal Speed)of Oxygen

question 38

Multiple Choice

At what temperature would the root-mean-square speed (thermal speed) of oxygen molecules be 13.0 m/s? Assume that oxygen approximates an ideal gas.The mass of one O₂ molecule is 5.312 × 10^-26 kg.The Boltzmann constant is 1.38 × 10^-23 J/K.

• A)0.217 K
• B)1800 K
• C)5410 K
• D)0.0666 K

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