A cubical box of side 1 meter contains helium gas (atomic weight 4) at a pressure of 100 N/m 2 . 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 = 25/3 J/mol-K and k = 1.38 × 10 –23 J/K.)
Evaluate the temperature of the gas. (in Kelvin)
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Sol. 0160
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