When We Consider a Thin Horizontal Layer of the Atmosphere

question 21

Multiple Choice

When we consider a thin horizontal layer of the atmosphere, of thickness dy, of area A, with pressure P on the bottom, with an average mass m per molecule, and nV molecules per unit volume, the magnitude of the difference of the pressure at the top and bottom of the layer is given by dP =

• A)mgdy.
• B)mgnVdy.
• C)mgAdy.
• D)mgnVAdy.
• E)mgnVAPdy.

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