Question

show the mathematical relationship for an entropy change for an ideal gas.​

Answer 1

Explanation:

It is known [1] that the entropy change for a monatomic ideal gas is given by DS = nRln(Tf /Ti)-nRln(Pf/Pi), where R is the molar gas constant and n is the amount of substance. This formula, which was obtained by recurring to a reversible process between the states (Ti ,Pi) and (Tf,Pf), gives DS = -8.000 J K-1.