Practice problem A fluid is confined in a cylinder by a spring loaded,
frictionless piston so pressure in the fluid is a
linear function of volume (P= a +bV). The internal
energy of the fluid is given by the equation
U= 34 + 3.15 PV
if the fluid changes from an initial state of 170 kPa,
0.03 m3 to final state of 400kPa, 0.06m3, with no
work other than done on the piston, find the
direction and magnitude of work and heat transfer​