Question

A piston-cylinder device contains 0.8 kg of steam at 300°C and 1 MPa. Steam is cooled at constant pressure until one-half of the mass condenses. (i) Show the process on a TV diagram. (ii) Find the final temperature. (iii) Determine the volume change. (iv) Determine the heat transfer.

Answer 1

Answer:

A piston–cylinder device contains 0.8 kg of steam at 300°C and 1 MPa. Steam is cooled at constant pressure until one-half of the mass condenses. ... Therefore volume occupied by steam at 300 C (573 K) and 1 Mpa = 0.8*0.194 m3 = 0.1552 m3.