The entropy change for a phase transformation is

• A

  $\frac{\mathrm{\Delta U}}{\mathrm{\gamma }+\mathrm{dT}}$

• B

  $\frac{\mathrm{\Delta T}}{\mathrm{\Delta H}}$

• C

  $\frac{\mathrm{\Delta H}}{\mathrm{T}}$

• D

  $\frac{\mathrm{\Delta H}+\mathrm{\Delta G}}{\mathrm{T}}$