0.2 m² of air at 20C and 100 kPa is compressed by the piston in an engine cylinder that has a compression ratio of 6:1. Heat is then added whilst the pressure remains tha same, until the piston return

0.2 m² of air at 20C and 100 kPa is compressed by the piston in an engine cylinder that has a compression ratio of 6:1. Heat is then added whilst the pressure remains tha same, until the piston returns to its original position. Sketch these processes on a p-V diagram and calculate:

A. mass of air,

B. pressure at the end of the compression,

C. final temperature,

D. nett work flow for the combined process.