For a spontaneous reaction at all temperatures, which of the following is correct?

  • A
    Both $\Delta H$ and $\Delta S$ are positive
  • B
    $\Delta H$ is positive and $\Delta S$ is negative
  • C
    $\Delta H$ is negative and $\Delta S$ is positive
  • D
    Both $\Delta H$ and $\Delta S$ are negative

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Similar Questions

For a reaction $\Delta H = 9.08 \ kJ \ mol^{-1}$ and $\Delta S = 35.7 \ J \ K^{-1} \ mol^{-1}$. Which of the following statements is correct for the reaction?

Which of the following processes will never be a spontaneous process?

$A$ process will be spontaneous at all temperatures if

Consider the following reaction:
$A_{(g)} + 3 B_{(g)} \longrightarrow 2 C_{(g)} ; \Delta H^{\ominus} = -24 \ kJ$.
At $25^{\circ} C$,if $\Delta G^{\ominus}$ of the reaction is $-9 \ kJ$,the standard entropy change (in $J \ K^{-1}$) of the same reaction at the same temperature is:

For a certain reaction, $\Delta H^{\circ} = 40 \text{ kJ}$ and $\Delta S^{\circ} = 80 \text{ JK}^{-1}$. Find the temperature at which $\Delta G^{\circ} = 0$. (in $\text{ K}$)

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