KINETIC molecular theory

A cubical box of side 2.0 m contains helium gas (M0= 4.0) at a pressure of 100N/m2 and temperature T K. During an observation time of 1s, an atom travelling with the root mean square speed parallel to one of the edges of cube, was found to make 500 hits with a particular wall, without any collision with other atoms. Take R= 25/3 J/mol K

the value of T/160 is equal to ______

the answer is an integer (0-9)

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