At What Temperature Would the Root Mean Square Speed of Oxygen

question 1

Multiple Choice

At what temperature would the root mean square speed of oxygen molecules,O₂,be $14.0 \mathrm {~m} / \mathrm { s }$ if oxygen behaves like an ideal gas? The mass of one O₂ molecule is 5.312 × 10^-26 kg,and the Boltzmann constant is 1.38 × 10^-23 J/K.

• A)0.251 K
• B)2090 K
• C)6270 K
• D)1.52 × 10²³ K

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