An ideal gas mixture at P1 and T1 is compressed in a piston cylinder assembly first isothermally to P2 and then isentropically (reversible and adiabatic) to T3. Assuming variable specific heats (use ideal gas tables) determine the following given the properties listed below. Note: For an isentropic process with variable specific heats, s3o - s2o = R*ln(P3/P2) --Given Values-- mO2 (kg) = 0.3 mN2 (kg) = 0.2
T1 (K) = 550
P1 (bar) = 1.5
P2 (bar) = 4.5
T3 (K) = 650
a) Determine the work (kJ) from state 1 to state 2.
b) Determine the heat transfer (kJ) from state 1 to state 2.
c) Determine the change in entropy (kJ/K) from state 1 to state 2.
d) Determine the pressure (bar) at state 3.
e) Determine the change in internal energy (kJ) from state 2 to state 3.
f) Determine the heat transfer (kJ) from state 2 to state 3.
g) Determine the work (kJ) from state 2 to state 3.