Average Kinetic Energy of Gases Practice Problems
What is the mean translational kinetic energy of atmospheric nitrogen (N2) of molar mass 28.01 g/mol at a temperature of 298 K?
In a physics simulation, four particles are moving with unique velocities as follows:
v1 = (10î - 20ĵ) m/s
v2 = (30î + 40ĵ) m/s
v3 = (-40î + 10ĵ) m/s
v4 = (20î - 30ĵ) m/s
Determine i) Average velocity (vavg), ii) Average speed (vavg), and iii) Root-mean-square velocity (vrms) of the particles in the simulation.
A container holds 1.5 moles of neon gas, which possesses 2500 J of thermal energy. Calculate the temperature of the gas in degrees Celsius.
In a container at atmospheric pressure, the temperature of the krypton gas above the liquid krypton is at krypton's boiling point of 120 K. Determine (i) the root-mean-square speed of the atoms, (ii) the mean energy per atom, and (iii) the mean free path in the gas. The atomic mass of krypton is 83.798 u and the atomic radius of krypton is 8.8 x 10-11 m.
In an experiment, a 3.0 g sample of argon gas was enclosed in a special chamber. If the rms speed of the atoms inside the chamber is 900 m/s, determine the total thermal energy of the argon gas.