For a reaction to be spontaneous at all temperatures, the values of enthalpy change $\Delta H$ and entropy change $\Delta S$ should be:

  • A
    $\Delta H > 0$ and $\Delta S > 0$
  • B
    $\Delta H < 0$ and $\Delta S > 0$
  • C
    $\Delta H < 0$ and $\Delta S < 0$
  • D
    $\Delta H > 0$ and $\Delta S < 0$

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