In a Period of 6

question 24

Multiple Choice

In a period of 6.00 s,6.00 * 10²³ oxygen molecules strike a wall with an area of 2.00 cm².If the molecules move with a speed of 400.0 m/s and strike the wall head-on in elastic collisions,what is the pressure exerted on the wall? (The mass of one O₂ molecule is 5.344 * 10^-26 kg.)

• A)28.1 kPa
• B)32.3 kPa
• C)21.4 kPa
• D)34.3 kPa
• E)47.6 kPa

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