Starting with Eq (6 9), show that isotherms in the vapor region of a Mollier (HS) diagram have slopes and curvatures given by Here, is volume expansivity If the vapor is described by the two term virial equation in P, Eq (3 36), what can be said about the signs of these derivatives Assume that, for...

Using the twoterm virial equation from Eq 336 and the fundamental thermodynamic relations we will construct the expressions for the slopes and curvatu ...

Starting with Eq. (6.9), show that isotherms in the vapor region of a Mollier (HS) diagram have

Question:

Starting with Eq. (6.9), show that isotherms in the vapor region of a Mollier (HS) diagram have slopes and curvatures given by:
Here, β is volume expansivity. If the vapor is described by the two-term virial equation in P, Eq. (3.36), what can be said about the signs of these derivatives? Assume that, for normal temperatures, B is negative and dB/dT is positive.