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The diameter of an oxygen molecule is about 0.3 nm.The pressure required for a mean free path of 1mm at 300 K is


A) 1.04 Pa.
B) 6.5 Pa.
C) 8.2 Pa.
D) 10.4 Pa.
E) 15.6 Pa.

F) A) and B)
G) A) and E)

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The cylinder shown has a radius of 6.0 cm.The current pressure of the gas inside is 2.0 atm.The piston is then pushed in by 20 cm,which is 1/3 of the length of the cylinder.If the temperature remains constant,what is the new pressure of the gas? The cylinder shown has a radius of 6.0 cm.The current pressure of the gas inside is 2.0 atm.The piston is then pushed in by 20 cm,which is 1/3 of the length of the cylinder.If the temperature remains constant,what is the new pressure of the gas?   A) 0.33 atm B) 1.33 atm C) 3.00 atm D) 3.33 atm E) 6.67 atm


A) 0.33 atm
B) 1.33 atm
C) 3.00 atm
D) 3.33 atm
E) 6.67 atm

F) A) and E)
G) C) and D)

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