free expansion or friction resisted expansion/compression process should not be encountered

when heat is being absorbed, temperature of hot source and working sub¬stance should be same

when beat is being rejected, temperature of cold source and working sub-stance should be same

all of the above

zero

minimum

maximum

infinity

0.75

1

1.27

1.35

4.17m3/kgmol

400 m3/kg mol

0.15 m3/kg mol

41.7 m3/kg mol

300 Nm

300,000 Nm

30 Nm

3000 Nm