Heat machine uses 5 moles of an ideal gas in the following three cycles: (P1=1 atm, T1=300K, T2=400K. sM(T1,P1)=100jol/k.mol)
Reversible adiabatic expansion from (P1, V2,T2) TO ( P2,V3,T2)
Reversible isobaric expansion from (P1, V1,T1) TO (P1,V2,T2)
Irreversible isothermal compression against external pressure P1from (P2, V3, T1)
TO (P1, V1,T1)A.FIND heat, work, change in energy, change in entropy, Gibbs free energy and Helmholtz free energy
Calculate the change of entropy of the surroundings in each of these three steps. Cv=1.5 R