At what temperature does O₂ have the same average speed as H₂ does at 273 K?

Name: At what temperature does O 2 have the same average speed as H 2 does at 273 K?
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Question

Quizplus · Accepted Answer

The average speed of a gas is proportional to the square root of the temperature divided by the molar mass. For O₂ to have the same average speed as H₂ at 273 K, the temperature must be much higher due to O₂'s greater molar mass. Solving the equation for equal speeds gives approximately 4.33 × 10³ K.

At What Temperature Does O2 Have the Same Average Speed

At What Temperature Does O₂ Have the Same Average Speed