What is the average speed of oxygen molecules at 154 K? Oxygen is assumed to approximate an ideal gas.The mass of one O₂ molecule is 5.312 × 10^-26 kg. A)346 m/s B)2.19 m/s C)8.15 × 10¹¹ m/s D)6.33 m/s

Question

Quizplus · Accepted Answer

The average speed of gas molecules can be calculated using the formula for the root-mean-square speed: $ v_{rms} = \sqrt{\frac{3kT}{m}} $, where $ k $ is the Boltzmann constant, $ T $ is the temperature in Kelvin, and $ m $ is the mass of one molecule. Plugging in the values, the average speed is approximately 346 m/s.

What Is the Average Speed of Oxygen Molecules at 154