Homework Statement
What is the Vrms, in meters per second, for helium atoms at 4.8 K? (which is close to the point of liquefaction)
Homework Equations
Vrms= √(3RT)/(M)
The Attempt at a Solution
R=3.145
T= I think its 4.15 Kelvin? based on the point of liquefaction of helium being -269°C...