The Pressure of a Gas in a Well-Sealed Vertical Frictionless

Multiple Choice

The pressure of a gas in a well-sealed vertical frictionless piston-cylinder device is to be increased by adding a mass of 25 kg on the piston. If the diameter of the cylinder is 14 cm, the increase in the pressure of the gas is

A) 15.9 kPa
B) 0.25 kPa
C) 0.56 kPa
D) 1.8 kPa
E) 38.7 kPa