A cubic box with sides of 20.0 cm contains 2.00 × 10²³ molecules of helium with a root-mean-square speed (thermal speed) of 200 m/s.The mass of a helium molecule is 3.40 × 10^-2⁷ kg.What is the average pressure exerted by the molecules on the walls of the container? The Boltzmann constant is
1) 38 × 10^-23 J/K and the ideal gas constant is R = 8.314 J/mol • K = 0.0821 L • atm/mol • K.

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The Answer of A cubic box with sides of 20.0 cm contains 2.00 × 10²³ molecules of helium with a root-mean-square speed (thermal speed)of 200 m/s.The mass of a helium molecule is 3.40 × 10^-2⁷ kg.What is the average pressure exerted by the molecules on the walls of the container? The Boltzmann constant is 1)38 × 10^-23 J/K and the ideal gas constant is R = 8.314 J/mol • K = 0.0821 L • atm/mol • K. A) 3.39 kPa B) 1.13 kPa C) 570 Pa D) 2.26 kPa E) 9.10 Pa

A Cubic Box with Sides of 20