Using p – v – T Data As shown i...

Using p – v – T Data

As shown in Fig. P3.30, a cylinder fitted with a piston is filled with 600 lb of saturated liquid ammonia at 45°F. The piston weighs 1 ton and has a diameter of 2.5 ft. What is the volume occupied by the ammonia, in ft³? Ignoring friction, is it necessary to provide mechanical attachments, such as stops, to hold the piston in place? Explain.