The average kinetic energy of the molecules in a gas sample depends only on the temperature, ?. 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=3??ℳ‾‾‾‾‾√ where ?=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 N2 molecules at 345 K?
The average kinetic energy of the molecules in a gas sample depends only on the temperature, ?.
However, given the same kinetic energies, a lighter molecule will move faster than a heavier molecule, as shown in the equation for rms speed
where ?=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 N2
molecules at 345 K?
The average kinetic energy of the molecules in a gas sample depends only on the temperature, ?.
However, given the same kinetic energies, a lighter molecule will move faster than a heavier molecule, as shown in the equation for rms speed
where ?=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 N2
molecules at 345 K?
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