A cubical box of side 1 meter contains helium gas (atomic weight 4) at a pressure of
PHYSICS · Multi-part · CBSE · Physics · Kinetic Theory · Kinetic Theory
Problem
A cubical box of side 1 meter contains helium gas (atomic weight 4) at a pressure of 100 N/m2 . During an observation time of 1 second, an atom travelling with the root-mean-square speed parallel to one of the edges of the cube, was found to make 500 hits with a particular wall, without any collision with other atoms. Take R=325 J/mol-K and k=1.38×10−23 J/K
(a) Evaluate the temperature of the gas.
(b) Evaluate the average kinetic energy per atom.
(c) Evaluate the total mass of helium gas in the box.