In: Physics
A gas sample is confined within a chamber that has a movable piston. A small load is placed on the piston; and the system is allowed to reach equilibrium. If the total weight of the piston and load is 70.0 N and the piston has an area of 5.0*10^-4 ,m^2 what is the pressure exerted on the piston by the gas.
Note: Atmospheric pressure is 1.013*10^5 Pa
Pressure = Force/Area
So Force = 70N and Area = 5.0 X 10-4
P=70/5 X 10-4
= 14 X 104
=1.4 X 105
To get Total pressure we have add the atmospheric pressure and Piston pressure
So P = 1.4 X 105+1.013 X 105
P = 2.413 X 105 Pa