Calculate the Gibbs energy change, \( \Delta G^{\ominus} \) in \( kJ~mol^{-1} \) for this reaction under standard conditions. Use the value of \( -4~kJ~mol^{-1} \) for \( \Delta H^{\ominus}_{r} \) and your answer from (d)(iv). If you did not obtain an answer for (d)(iv) use \( -10~JK^{-1}mol^{-1} \), although this is not the correct answer. Use sections 1 and 4 of the data booklet.