The average kinetic energy of the molecules in a gas sample depends only on the temperature, T. However, given the same kinetic energies, a lighter molecule will move faster than a heavier molecule, as shown in the equation for rms speed rms speed = 3RT M where R = 8.314 J/(mol·K) and M is molar mass in kilograms per mole. Note that a joule is the same as a kilogram-meter squared per second squared (kg.m²/s²). What is the rms speed of O2 molecules at 443 K? rms speed: What is the rms speed of He atoms at 443 K? rms speed: m/s m/s

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The average kinetic energy of the molecules in a gas sample depends only on the temperature T. R=8.314. What is the rms speed 02 molecules at 443 K? What is the rms speed of He atoms at 443 K?

The average kinetic energy of the molecules in a gas sample depends only on the temperature, T. However, given the same
kinetic energies, a lighter molecule will move faster than a heavier molecule, as shown in the equation for rms speed
rms speed =
3RT
M
where R = 8.314 J/(mol·K) and M is molar mass in kilograms per mole. Note that a joule is the same as a kilogram-meter
squared per second squared (kg.m²/s²).
What is the rms speed of O2 molecules at 443 K?
rms speed:
What is the rms speed of He atoms at 443 K?
rms speed:
m/s
m/s
Transcribed Image Text:The average kinetic energy of the molecules in a gas sample depends only on the temperature, T. However, given the same kinetic energies, a lighter molecule will move faster than a heavier molecule, as shown in the equation for rms speed rms speed = 3RT M where R = 8.314 J/(mol·K) and M is molar mass in kilograms per mole. Note that a joule is the same as a kilogram-meter squared per second squared (kg.m²/s²). What is the rms speed of O2 molecules at 443 K? rms speed: What is the rms speed of He atoms at 443 K? rms speed: m/s m/s
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