Question

At constant pressure calculate the root mean square velocity of a gas molecule

Answer 1

Gases consist of atoms or molecules that move at different speeds in random directions. The root means square velocity (RMS velocity) is a way to find a single velocity value for the particles. The average velocity of gas particles is found using the root mean square velocity formula. μrms = (3RT/M)½..

The root mean square velocity of gas molecules is not a function of pressure, its only a function of the gas' temperature and molecular mass. ... Increasing pressure increases the kinetic energy of molecules and thus velocity. But, increase in pressure, increases collisions between molecules.