Question- if 20 x 1023 argon atoms strike 40 cm2 of wall, Ask an Expert

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Question- If 2.0 x 10^23 argon atoms strike 4.0 cm^2 of wall per second at a 90 degree angle to the wall moving with a speed of 450 m/s. what pressure (in bar) does the gas exert on the wall? I got 1.5 x 10^3 but not sure I did it right.

Thoughtfully please put your best attempt to provide the solution of above problem

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