Question

The Gibbs energy of mixing of two perfect gases is given by"

A) ΔG = RT(x1 ln(x1) + x2 ln(x2))
B) ΔG = RT(x1 + x2)
C) ΔG = RT(x1/x2)
D) ΔG = RT(x2 ln(x1) + x1 ln(x2))

Answer 1

The Gibbs energy of mixing for two perfect gases is correctly described by the equation ΔG = RT(x1 ln(x1) + x2 ln(x2)), representing choice A.

Step-by-step explanation:

The question asked concerns the Gibbs energy of mixing of two perfect gases. The correct expression for the Gibbs energy of mixing is given by the equation ΔG = RT(x1 ln(x1) + x2 ln(x2)), which corresponds to choice A. This equation is based on the properties of ideal or perfect gases and takes into account the mole fractions (x1 and x2) of the two gases being mixed. The gas constant R and absolute temperature T are also factors in this equation. This equation is in keeping with the general concept of the Gibbs free energy change, which helps predict whether a process will proceed spontaneously under a set of given conditions.