. A system comprising of a gas of 5 kg mass
undergoes expansion process from 1 MPa and 0.5 m3
to 0.5 MPa. Expansion process is governed by, p.v1.3
= constant. The internal energy of gas is given by, u
=1.8 pv + 85, kJ/kg. Here ‘u’ is specific internal
energy, ‘p’ is pressure in kPa, ‘v’ is specific volume
in m3
/kg. Determine heat and work interaction and
change in internal energy.
