When chlorobenzene and bromobenzene are mixed at constant temperature and pressure, which of the following sets of thermodynamic relations is correct for the resulting mixture?

Step-by-step solution

A mixture of chlorobenzene and bromobenzene forms an ideal solution because the intermolecular attractive forces between chlorobenzene and bromobenzene are nearly the same as those in the pure components. For an ideal solution, the enthalpy of mixing and the volume of mixing are zero: _ mix H = 0 and _ mix V = 0 . Since the mixing of two miscible liquids is a spontaneous process, the Gibbs free energy of mixing must be negative ( _ mix G 0 ). Therefore, the correct set of relations is _ mix V = 0 and _ mix G Answer