Using Liquid Pressure to Determine Gas Pressure

Recall from Measuring a Gas:

Open-End Manometer

  1. Gas pressure is equal to barometric pressure, so
  2. Gas pressure is greater than barometric pressure, so
  3. Gas pressure is less than barometric pressure, so
Equation

Example

What is the pressure (in ) of the gas inside the apparatus below if , , , and .
Manometer.png

solution