The Soave-Redlich-Kwong equation is presented in problem 7.15. Derive expressions for the enthalpy and entropy departure functions in terms of this equation of state.

Data from problem 7.15:

The Soave-Redlich-Kwong equation is given by:

where ρ = molar density = n/V

T_c, P_c, and ω are reducing constants according to the principle of corresponding states. Solve for the parameters at the critical point for this equation of state (a_c, b_c, and Z_c) and list the next five significant figures in the sequence 0.08664.......

Transcribed Image Text:

P = RTp (1 - bp) - ap² 1+bp or Z = 1 a bp (1-bp) bRT 1+bp 7.65