(a)[2]
Calculate the number of hydrogen molecules formed during the electrolysis.
(b)[1]
Calculate the total number of electrons transferred to produce this number of hydrogen molecules.
(c)[1]
Calculate the amount of charge, in coulombs, carried by the total number of electrons found in (b).
(d)[1]
Calculate the current, $x$, that flowed in this experiment.
(e(i))[1]
Calculate $\Delta S^\circ$ for the reaction $2\text{H}_2\text{O}(l) \rightarrow 2\text{H}_2(g) + \text{O}_2(g)$.
(e(ii))[2]
For the reaction $2\text{H}_2\text{O}(l) \rightarrow 2\text{H}_2(g) + \text{O}_2(g)$, $\Delta H^\circ$ is $+572\,\text{kJ mol}^{-1}$. Calculate $\Delta G^\circ$ for this reaction at $298\,\text{K}$.
(e(iii))[1]
Predict the effect of increasing temperature on the spontaneity of this reaction. Explain your answer.