A Gas Sample Is Confined Within a Chamber That Has

Multiple Choice

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 m², what is the pressure exerted on the piston by the gas? Note: Atmospheric pressure is 1.013 × 10⁵ Pa.

A) 2.8 × 10⁴ Pa
B) 5.6 × 10⁴ Pa
C) 7.3 × 10⁴ Pa
D) 1.4 × 10⁵ Pa
E) 2.4 × 10⁵ Pa