Particles Velocity Calculator (Gas)
Calculate the root mean square (RMS), average, and most probable velocities of gas particles based on temperature and molar mass.
RMS Velocity
— m/s
Average Velocity
— m/s
Most Probable Velocity
— m/s
About Gas Particle Velocities
The velocity of gas particles is determined by temperature and molar mass. This calculator provides three key velocity measures:
- RMS Velocity: The square root of the average squared velocity of particles
- Average Velocity: The mean velocity of all particles
- Most Probable Velocity: The velocity most likely to be possessed by any particle
Frequently Asked Questions
What is the difference between RMS, average, and most probable velocity?
RMS velocity is the square root of the average squared velocity, which gives more weight to higher velocities. Average velocity is the simple mean of all particle velocities. Most probable velocity is the speed most likely to be found in any given particle at that temperature.
Why does molar mass affect particle velocity?
At the same temperature, lighter particles move faster than heavier ones because the thermal energy is distributed among particles regardless of mass. This means particles with lower molar mass will have higher velocities.
Can this calculator be used for any gas?
Yes, this calculator works for any ideal gas. For real gases at high pressures or low temperatures, the results may be less accurate due to intermolecular forces.