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Stuck on this for a while and my calculations are completely wrong. Any help would be extremely amazing!

In a period of 9.00 s, 5.00 x 1023 nitrogen molecules strike a wall of area 7.20 cm². Assume the molecules move with a
speed of 400 m/s and strike the wall head-on in elastic collisions. What is the pressure exerted on the wall? Note: The
-26
mass of one N₂ molecule is 4.65 x 107 kg.
kPa

Expert Solution

Given data

Period of time Δt = 9.00S

Number of molecules N = 5x10²³ molecules

Area A = 7.2 Cm² =7.2x10^-4 m

Speed of molecules Δv= 400 m/s

Mass of one nitrogen molecule m = 4.65x10^-26 kg

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