Which quantity out of $\Delta _{r}G$ and $\Delta _{r}G^{\theta }$ will be zero at equilibrium?

  • A
    $\Delta _{r}G$
  • B
    $\Delta _{r}G^{\theta }$
  • C
    Both $\Delta _{r}G$ and $\Delta _{r}G^{\theta }$
  • D
    None of these

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