Solve the below:
Q: As shown in Fig. air is contained in a vertical piston-cylinder assembly fitted with an electrical resistor. The atmosphere exerts a pressure of 14.lbf/in2 on the top piston, which has a mass of 100 lb and face area of 1 ft2. As electric current passes through the resistor, the volume of the air increases while the piston moves smoothly in the cylinder. The local acceleration of gravity is g= 32.0ft/s2. Determine the pressure of the air in the piston-cylinder assembly, in lbf/in.2 and psig.
