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Pressure in a container placed on a reduced area?

  1. Mar 29, 2015 #1
    Really simple question but it's been making me a little confused.

    Lets imagine we have a container (cubic with length of 1 meter) with a pressure of 1 Pascal and then an area inside the container of 1 mm^2 is chosen to measure the force on that area, what would the pressure be? 1 Pascal or 1000 Pascals?

    My guess is the gas pressure applied to the smaller area would be larger than the pressure on the walls of the entire container similar to how a hammer can put a nail in wood easier than a blunt object.
  2. jcsd
  3. Mar 29, 2015 #2


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    If the container is closed and has an internal pressure of 1 pascal, then the pressure everywhere inside the container is the same: 1 pascal.

    Now, the equivalent force over a certain area in the container will change, since the pressure P = F / A. P is a constant, but A can be chosen as 1 cm2, or 1 mm2 or whatever, and F can be calculated by F = P * A.
  4. Mar 29, 2015 #3
    Thanks! now it makes sense.
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