A Flask Contains 1

question 12

Multiple Choice

A flask contains 1.00 mole of oxygen gas,O₂,at 0.00 °C and 1.013 × 10⁵ Pa.What is the rms speed of the molecules? Note: the atomic mass of O is 16 u.

• A)230 m/s
• B)460 m/s
• C)651 m/s
• D)920 m/s
• E)1302 m/s

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