A : For an isolated system `Delta G = - TDeltaS_("total")`
R: For an isolated system q = 0.

Options

A. `Delta S= 0`
B. `Delta S lt 0`
C. `Delta S ge 0`
D. The value of `Delta S` cannot be predicted

Answer

C

Explanation

For isolated system q = 0, if `Delta U = 0` then w = 0, `Delta T =0` so if something is going on inside the system then the process is spontaneous `(Delta S gt 0)`, otherwise `Delta S= 0`