Question

a piston cylinder device initially contains air at 150 kPa
and 27°c​

Answer 1

Answer:

A piston-cylinder device initially contains air at 150 kPa and 27∘ C. At this state, the piston is resting on a pair of stops, and the enclosed volume is 400 L. The mass of the piston is such that a 350 kPa pressure is required to move it. The air is now heated until its volume has doubled.