Question

**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=√3RTM 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 Cl2 molecules at 471 K? rms speed: m/s What is the rms
speed of He atoms at 471 K? rms speed: m/s**

Answer #1

The average kinetic energy of the molecules in a gas sample
depends only on the temperature, T. But given the same kinetic
energies, a lighter molecule will move faster than a heavier
molecule.
What is the rms speed of F2 molecules at 363 K?
what is the rms speed of He atoms at 363 K?

1. The average kinetic energy of the molecules in a gas sample
depends only on the temperature, T. But given the same kinetic
energies, a lighter molecule will move faster than a heavier
molecule.
A. What is the rms speed of Cl2 molecules at 505 K?
B. What is the rms speed of He atoms at 505 K?
2. Use the van der Waals equation of state to calculate the
pressure of 3.70 mol of H2O at 473 K in...

A container holds 2.7 mol of gas. The total average kinetic
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What is the Kelvin temperature of the gas?

Your research director informs you that the molecules of a
sample of gas at 397 K397 K have a root‑mean‑square (rms) speed of
297 m/s297 m/s and asks you to calculate the most probable speed
and the average speed. Also, while you're at it and before lunch,
you should calculate the mass of a molecule.
most probable speed:
m/s
average speed:
m/s
molecular mass:
kg

Calculate the temperature ? of a sample of gas when the average
translational kinetic energy of a molecule in the sample is
8.15×10−21 J.
?= ________K
What is the total translational kinetic energy ?trans of all the
molecules of this sample when it contains 2.15 moles of gas?
?trans= ________J
A cylinder which is in a horizontal position contains an unknown
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5. One mole of oxygen gas is at a pressure of 6.90 atm and a
temperature of 25.0°C.
(a) If the gas is heated at constant volume until the pressure
triples, what is the final temperature?
°C
(b) If the gas is heated so that both the pressure and volume are
doubled, what is the final temperature?
°C
6. (a) An ideal gas occupies a volume of 1.6 cm3 at
20°C and atmospheric pressure. Determine the number of molecules of...

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