a$)$ Name the enthalpy change for the following reactions:

i$)$ LiCl$(s)longrightarrowL{i}^{+}(aq)+C{l}^{-}(aq)$

ii$)C{H}_4(g)+2O_2(g)longrightarrowC{O}_2(g)+2H_{2}O(\frac{?}{?})$

b$)$ Calculate the enthalpy of formation of copper$($II$)$ sulphate from the following data:

$2Cu(s)+O_2(g)longrightarrow2$CuO$(s)$

$2S(s)+3O_2(g)longrightarrow2S{O}_3(g),H^0=-325kJ$

CuO$(s)+S{O}_3(g)longrightarrow{H}^0=-800kJ$

$CuS{O}_4(s),H^0=-220kJ$

c$)$ TABLE $2$ shows several selected thermochemical data.

TABLE $2$

$\backslash$table$[[$Enthalpy$,H(kJmo{l}^{-1})$